# ClimMaTech: full reference > ClimMaTech designs and makes radar-based flood and water monitoring devices, community warning sirens and the software that connects them. Its products measure river, reservoir and drain water level and surface velocity without touching the water, detect events on the device with edge AI, and sound warnings for communities. Designed, engineered and made in India. Company: ClimMaTech Pvt. Ltd., Salgi, Mandi, Himachal Pradesh 175005, India. Founded by engineers and researchers from IIT Mandi. ISO 9001:2015 certified organisation. Contact: admin@climmatech.com, +91 74880 11618. LinkedIn: https://www.linkedin.com/company/climmatech/ ## Common to all hardware - Operating temperature -40°C to +70°C on all hardware devices - GSM (2G / 3G / 4G) connectivity on all devices, with LoRa and other options by site - Weatherproof enclosures; solar-powered for off-grid sites - Warning lead time from 30 minutes to 48 hours, depending on upstream conditions ## Scope notes (what ClimMaTech does not claim) - TARANG and PRAVAAH measure water level, and PRAVAAH also measures surface velocity. Calculating river discharge additionally needs a surveyed cross-section and a calibrated relationship between surface and average velocity. - RAKSHAK sounds warnings that a connected monitoring system, agency or operator decides to send. It does not detect or predict hazards by itself. - Enclosures are described as weatherproof. No IP rating or third-party approval is claimed for the devices. - The Data Logger and the Rakshak Control Centre are upcoming. - Prices are not published. Systems are designed to be low cost and are quoted for each project. # Products ## DOORDRISHTI (CLM-CVDR05): Edge AI Radar + Vision Monitoring URL: https://climmatech.com/products/doordrishti Edge AI that sees the event, not just the number. DOORDRISHTI combines millimetre-accurate radar water level sensing, Doppler radar surface velocity tracking and an AI-enabled Full HD camera in a single solar-powered unit. Its on-device AI engine detects events automatically, with no network or cloud needed, and captures an image of each one. The camera can also stream the site live, so operators can verify conditions before they act. Specifications: - Edge AI: On-device AI engine for automatic event detection, configurable for each site; runs without a network connection - Event Capture: Event-triggered images, hourly captures and live streaming from site - Water Level: 61 GHz FMCW radar, 0 - 30 m, ± 1 mm - Surface Velocity: 24 GHz Doppler radar, 0.02 - 20 m/s, ± 1-2% of measured value - Camera: Full HD (1080p), AI-enabled, 2.8-12 mm varifocal lens (~120° horizontal FOV) - Optical Velocity Estimation: 0.02 - 5 m/s via AI optical flow, cross-validated with the radar - Storage: On-board microSD (up to 128 GB) + cloud sync - Power: 12 V DC / solar panel (60 W recommended), < 4 W active - Enclosure: Weatherproof enclosure - Operating Temp: -40°C to +70°C Connectivity: GSM (2G / 3G / 4G), RS-485, MODBUS, Ethernet, Wi-Fi, LoRa, MQTT Applications: Flash Flood Early Warning; Dam & Reservoir Management; Urban Drainage Monitoring FAQs: Q: What events can DOORDRISHTI detect? A: The on-device AI engine is configurable for each site. Examples include rapid water-level rise, abnormal flow, debris and bank changes. Contact us and we will set it up for the events you need. Q: Where does the AI run, and does it need the internet? A: The AI engine runs on the device itself and does not need a network or cloud connection to detect events. Results and images are sent to the ClimMaTech cloud when a connection is available. Q: What happens when an event is detected? A: The camera captures images of the event, which are available to operators alongside the radar readings, so they can verify conditions before acting. Q: Can I watch the site live? A: Yes. The camera supports live streaming from site, so control room operators can see conditions in real time. Live viewing needs a network connection; event detection does not. Q: Does DOORDRISHTI require grid power? A: No. It runs on 12 V DC or a solar panel (60 W recommended) for autonomous off-grid deployment. Q: How does the dual validation work? A: The camera estimates surface velocity with AI optical flow tracking and the radar measures it directly. The two are compared for cross-validation. Q: Does it require frequent manual calibration? A: No. Edge-AI self-calibration maintains precision without frequent manual intervention in the field. Q: What is the maximum measurement width for the camera? A: The varifocal lens is suited to river or drain widths up to 20 m. Q: What communication options are supported? A: GSM (2G / 3G / 4G), RS-485, MODBUS, Ethernet, Wi-Fi, LoRa and MQTT, connecting to the ClimMaTech Cloud, which feeds the Aagah mobile app. Q: Can DOORDRISHTI be used as a river monitoring camera for flood early warning? A: Yes. It combines a Full HD AI camera with level and velocity radar. The camera captures an image when an event is detected and can stream the site live, so operators can verify conditions before issuing a warning. Q: Can DOORDRISHTI work like an AWLR or AWVLR station with a camera? A: Yes. It measures water level and surface velocity with radar, like an AWLR or AWVLR station, and adds a camera and on-device AI so operators can see what caused a change before they act. Q: Where is DOORDRISHTI made? A: DOORDRISHTI is designed, engineered and made in India by ClimMaTech. It is built for outdoor use anywhere, with an operating range of -40°C to +70°C and GSM (2G / 3G / 4G) connectivity. ## PRAVAAH (CLM-LVR05): Non-Contact Water Level & Surface Velocity Monitoring System URL: https://climmatech.com/products/pravaah A non-contact, radar-based monitoring system that measures river water level and surface velocity in real time, with no sensor in the water. PRAVAAH pairs a 61 GHz level radar with a 24 GHz velocity radar, runs autonomously on solar power, and sends data to the ClimMaTech cloud for flood forecasting, early warning and climate resilience. Specifications: - Level Radar: 61 GHz FMCW radar, non-contact - Level Measuring Range: 0 to 50 m (customisable) - Level Accuracy: ± 1 mm - Level Resolution: 0.5 mm - Level Beam Angle: 8° × 8° - Level Sampling Frequency: 1 Hz (default), up to 10 Hz (configurable) - Velocity Radar: 24 GHz K-band Doppler radar, non-contact - Velocity Range: 0.02 to 20 m/s - Velocity Accuracy: ± 1% of measured velocity - Velocity Resolution: 0.01 m/s - Velocity Detection Range: Up to 20 m - Velocity Beam Angle: 12° × 25° - Sensor Outputs: 4-20 mA, RS-485, RS-232, MQTT (level radar also SDI-12 and LoRa) - Operating Voltage: 9-30 VDC - Operating Temp: -40°C to +70°C - Enclosure: Weatherproof enclosure - Solar Power System: 40-60 W monocrystalline panel, LiFePO4 battery (site dependent), MPPT charge controller - Power Consumption: < 2.5 W (average) - Power Protection: Over-voltage, under-voltage and short-circuit protection - Protocols: MQTT, Modbus RTU, ASCII - Security & Remote Access: Secure authentication and encrypted communication; secure remote configuration, diagnostics and over-the-air updates Connectivity: GSM (2G / 3G / 4G), LoRa, Wi-Fi, Ethernet, NB-IoT (optional), VSAT (optional), MQTT Applications: Dams & Reservoirs; Rivers & Streams; Canals & Irrigation Systems; Urban Drainage & Stormwater; Hydropower Plants; Bridges & Critical Infrastructure FAQs: Q: What does PRAVAAH measure? A: PRAVAAH measures both river water level (61 GHz radar) and surface velocity (24 GHz Doppler radar) in real time, without any sensor in the water. Q: Does it touch the water? A: No. Both radars measure from above the water, for example from a bridge, so floods and debris do not damage the sensing elements. Q: How is it powered? A: It runs on 9-30 VDC from a solar panel (40-60 W) and a LiFePO4 battery, with an MPPT charge controller. Average consumption is under 2.5 W, and it is built for remote, off-grid sites. Q: How does it send data and alerts? A: Data goes to the ClimMaTech cloud over GSM (2G / 3G / 4G), LoRa, Wi-Fi or Ethernet, with NB-IoT and VSAT as options. Alerts go out by WhatsApp, SMS and email when thresholds are crossed. Q: Can the device be configured and updated remotely? A: Yes. It supports secure remote configuration and diagnostics, and over-the-air updates. Q: Is PRAVAAH an AWVLR (automatic river water velocity and level recorder)? A: Yes. PRAVAAH records river water level and surface velocity automatically, using a 61 GHz level radar and a 24 GHz velocity radar with one controller and data acquisition unit. Readings are sent to the ClimMaTech cloud over GSM (2G / 3G / 4G), LoRa, Wi-Fi or Ethernet. Q: Does PRAVAAH measure river discharge? A: PRAVAAH measures the two inputs to discharge: water level and surface velocity. Calculating discharge also needs a surveyed cross-section of the channel and a calibrated relationship between surface and average velocity. We can help you plan this. Q: Can PRAVAAH be used for stream gauging and hydromet stations? A: Yes. It records river stage and surface velocity continuously from a bridge or structure above the water, and sends the readings to the cloud, which suits stream gauging and hydromet telemetry stations. Q: Where is PRAVAAH made? A: PRAVAAH is designed, engineered and made in India by ClimMaTech. It is built for outdoor use anywhere, with an operating range of -40°C to +70°C and GSM (2G / 3G / 4G) connectivity. ## TARANG (CLM-LR05): High-Precision Radar Level Sensor URL: https://climmatech.com/products/tarang A specialised non-contact radar level sensor for high-precision water level monitoring. TARANG uses 61 GHz FMCW radar to measure river, reservoir and drain levels to millimetre accuracy, without touching the water. Specifications: - Measuring Principle: 61 GHz FMCW radar (W-band), non-contact - Range: 0 - 50 m (customisable) - Accuracy: ± 1 mm - Resolution: 0.5 mm - Beam Angle: 8° azimuth × 8° elevation - Sampling: 1 sample/s default, up to 10 samples/s - Output Signal: 4-20 mA, RS-485, RS-232, SDI-12, LoRa, MQTT - Operating Voltage: 9-30 V DC (solar compatible) - Power Consumption: < 1.5 W active / 0.2 W standby - Enclosure: Weatherproof enclosure - Operating Temp: -40°C to +70°C - Mounting: Top-mount or bridge mount with adjustable bracket Connectivity: GSM (2G / 3G / 4G), LoRa, MQTT, RS-485, RS-232, SDI-12, 4-20 mA, NB-IoT (optional), Wi-Fi (optional) Applications: River Level Monitoring; Dam & Reservoir Level Monitoring; Urban Drain and Underpass Monitoring FAQs: Q: What does TARANG measure? A: TARANG is a dedicated water level sensor. If you also need surface velocity, PRAVAAH combines a level radar and a velocity radar in one system. Q: How accurate is it? A: ± 1 mm accuracy with 0.5 mm resolution, over a measuring range of 0-50 m that can be customised. Q: Does it need to touch the water? A: No. It is a non-contact 61 GHz radar mounted above the water, on top of a structure or on a bridge bracket. Q: Which interfaces does it support? A: 4-20 mA, RS-485, RS-232, SDI-12, LoRa and MQTT outputs, plus GSM (2G / 3G / 4G) communication, with optional NB-IoT and Wi-Fi. Q: Can it run on solar power? A: Yes. It runs on 9-30 V DC and draws under 1.5 W when active, so it is solar compatible. Q: Can TARANG be used in an AWLR (automatic river water level recorder) station? A: Yes. TARANG is the radar level sensor for an AWLR station. Together with a data logger and telemetry, such as GSM (2G / 3G / 4G) or LoRa, it records water level automatically and sends it to the cloud. Q: Is TARANG a river stage sensor or a radar level transmitter? A: Yes. TARANG is a non-contact radar river stage sensor. It measures the water level to ± 1 mm and provides 4-20 mA, RS-485, RS-232, SDI-12, LoRa and MQTT outputs, so it works as a radar level transmitter feeding a logger or a hydromet telemetry station. Q: Can TARANG be the level sensor in a hydromet or telemetry station? A: Yes. It can be the level sensor of a river gauge or telemetry station, sending readings over GSM (2G / 3G / 4G) or LoRa to your server or the ClimMaTech cloud, and it connects to existing loggers through its standard outputs. Q: How does a radar water level sensor compare with a float or ultrasonic sensor? A: A radar sensor measures from above with no moving parts and does not sit in the water, unlike a float or submersible sensor. Unlike an ultrasonic sensor, its radio signal is not slowed by air temperature in the same way, and its narrow 8° by 8° beam looks at a small patch of water. Q: Where is TARANG made? A: TARANG is designed, engineered and made in India by ClimMaTech. It is built for outdoor use anywhere, with an operating range of -40°C to +70°C and GSM (2G / 3G / 4G) connectivity. ## RAKSHAK (CLM-EWS-01): All Disaster Early Warning System URL: https://climmatech.com/products/rakshak A solar-powered, wireless community alert system. RAKSHAK is a remotely activated public warning system that receives authorised alert commands from any monitoring system or server through an open API, and instantly sets off audible and visual warnings for communities, infrastructure and personnel. Specifications: - Primary Function: Remote emergency alert and warning dissemination - Siren: High-output siren (configurable) - Siren Direction: 1, 2 or 4 direction (configurable) - Audio: Multiple alert tones, custom voice messages, site-specific warning messages and configurable alert patterns - Visual Alert: Red warning beacon - Activation: Wireless or centralised early warning system (EWS) - Trigger Interface: API-based, compatible with any server or cloud - Communication: GSM (2G / 3G / 4G), LoRa or VSAT, configured to project requirements - Communication Range: LoRa up to 10 km in ideal conditions; anywhere with GSM network coverage - Trigger-to-Activation Latency: Target up to 5 seconds, subject to communication conditions - Power: Solar powered with battery backup (LiFePO4, customisable) and charge controller - Siren Operation: Up to 24 hours, configuration dependent. Actual duration depends on siren output, activation duty cycle, battery configuration and solar availability - Enclosure: Weatherproof enclosure - Mounting: Pole mounted - Operating Temp: -40°C to +70°C - Device Health Monitoring: Periodic and daily health reporting - Expandable Interface: Configurable port for compatible sensors or auxiliary devices - Backend Options: Your existing server or cloud, or ClimMaTech Cloud (optional) - Deployment: Mountainous, river, rural, urban, infrastructure and industrial sites - Customisation: Hardware, communication, audio, power and deployment options Connectivity: GSM (2G / 3G / 4G), LoRa, VSAT Applications: Floods (river rise and inundation); Landslides (slope instability and debris flow); Severe Weather (heavy rainfall, storms, cyclones); Infrastructure Emergencies (dams, bridges, critical assets); Industrial Emergencies (chemical, fire and site incidents); Public Safety Events; Evacuation Alerts; Other Emergency Situations FAQs: Q: What hazards can RAKSHAK warn about? A: RAKSHAK disseminates alerts generated by a connected monitoring, control or emergency-management system, for floods, landslides, severe weather, infrastructure and industrial emergencies, public safety events and evacuations. The hazard detection and alert logic are determined by the connected system. Q: Does it need ClimMaTech sensors? A: No. RAKSHAK accepts authorised alert commands through an open API from any monitoring system, server or cloud. ClimMaTech Cloud is optional, and is available for deployments without an existing backend. Q: How is it activated? A: Wirelessly or from a centralised EWS, using an API command sent over GSM (2G / 3G / 4G), LoRa or VSAT, depending on the project. Q: How quickly does it respond? A: The target trigger-to-activation latency is up to 5 seconds, subject to communication conditions. Q: How long does it run? A: It is solar powered with battery backup, and can sound the siren for up to 24 hours depending on configuration. Actual duration depends on siren output, activation duty cycle, battery configuration, solar availability and site conditions. Q: Can I choose the siren direction and the messages? A: Yes. The siren is available in 1, 2 or 4-direction layouts, and the alert tones, voice messages and patterns are configurable for each site. Q: Can I connect other sensors? A: Yes. An expandable interface supports compatible sensors and auxiliary devices such as a water level sensor, rain gauge, weather sensor or environmental sensor. Q: How do I know a unit is working? A: Device health monitoring reports power status, battery level, solar charging, connectivity and last communication. Q: Is RAKSHAK an early warning dissemination system? A: Yes. RAKSHAK is the last-mile warning dissemination device: a solar-powered siren with a beacon and voice messages that sounds when it receives an authorised alert command through its open API. Q: Does RAKSHAK support CAP alerts? A: RAKSHAK sirens are triggered through an open API. CAP (Common Alerting Protocol) alerts are accepted by the Rakshak Control Centre, coming soon, which can then send them to the sirens in the right area. Q: Where is RAKSHAK made? A: RAKSHAK is designed, engineered and made in India by ClimMaTech. It is built for outdoor use anywhere, with an operating range of -40°C to +70°C and GSM (2G / 3G / 4G) connectivity. ## VARSHAQ (CLM-AWS01): Automatic Weather Monitoring System URL: https://climmatech.com/products/varshaq A solar-powered, modular automatic weather station for real-time monitoring of atmospheric and environmental conditions. VARSHAQ integrates precision sensors, industrial edge data logging, resilient connectivity and secure cloud integration to deliver actionable weather intelligence for climate resilience, agriculture, infrastructure and hydrometeorological applications. Specifications: - Product: VARSHAQ — CLM-AWS01 - Architecture: Modular multi-parameter weather observation system - Air Temperature: -40 to +105 °C (±0.1 °C typical / 0.01 °C resolution) - Relative Humidity: 0–100% RH (±1.5% RH typical / 0.01% RH resolution) - Barometric Pressure: 300–1250 hPa (±0.3 hPa typical) - Wind Speed: 0–40 m/s (±(0.5 m/s + 2% FS) / 0.01 m/s resolution) - Wind Direction: 0–360° (±3° / 1° resolution) - Rainfall: Event-based (2% at stated intensity) - Global Solar Radiation: 0–1800 W/m² (≤±2% non-linearity) - PAR (Optional): 0–4000 µmol/m²/s (±5% at reference) - Sensor Outputs: RS-485 Modbus RTU, SDI-12, analog 0–20 mA / 0–5 V, pulse and digital - Local Storage: 8–64 GB industrial SD card with store-and-forward capability - Connectivity: 4G / LTE, LoRa, Ethernet and Wi-Fi connectivity - Cloud Protocols: MQTT, REST, HTTP, FTP - Data Formats: JSON, CSV, configurable text - Security: SSL/TLS encrypted communication and user authentication - Data Resilience: Offline logging, store-and-forward and multi-server push - Power Supply: Solar PV, MPPT charge controller and rechargeable LiFePO4 battery (9–30 V DC) - Outdoor Enclosure: IP65 / IP67, configuration-dependent - Mounting: Mast, tripod or fixed structure - Operating Temperature: -30°C to +60°C (system-dependent; sensor range -40°C to +105°C) - Modularity: Configurable sensors and expansion options Connectivity: 4G / LTE, LoRa, Ethernet, Wi-Fi, RS-485 Modbus RTU, SDI-12 Applications: Hydrometeorology and Flood Risk Monitoring; Agriculture and Microclimate Monitoring; Infrastructure and Transportation; Hydropower and Water Resources; Research and Field Studies; Climate Resilience and Disaster Risk Reduction FAQs: Q: What does VARSHAQ measure? A: VARSHAQ monitors air temperature, relative humidity, atmospheric pressure, wind speed, wind direction, rainfall and global solar radiation. Photosynthetically Active Radiation (PAR) is available as an optional measurement. Q: How is VARSHAQ powered? A: It uses a solar PV system, MPPT charge controller and rechargeable LiFePO4 battery. The final power configuration depends on site requirements. Q: Can VARSHAQ operate at remote locations? A: Yes. Its solar-powered architecture, local data storage and multiple connectivity options are designed to support remote and off-grid monitoring deployments. Q: What happens when network connectivity is lost? A: The edge logger supports offline data logging and store-and-forward functionality. Buffered records can be transmitted when connectivity is restored. Q: How does VARSHAQ send data to the cloud? A: It supports 4G/LTE, Ethernet and Wi-Fi connectivity, with MQTT, REST, HTTP and FTP protocols. Available interfaces depend on the configured system. Q: Can VARSHAQ be customised? A: Yes. Its modular architecture supports configurable sensors and interfaces based on project requirements. PAR sensing is an optional configuration. Q: What is its operating temperature? A: The catalogue specifies a system operating temperature of -30 °C to +60 °C, depending on configuration. The air-temperature sensor itself has a stated measurement range of -40 °C to +105 °C. Q: Can VARSHAQ support flood forecasting? A: VARSHAQ provides weather observations that can support hydrometeorological analysis and flood forecasting when combined with suitable hydrological models, river monitoring data and forecasting systems. Q: Where is VARSHAQ made? A: VARSHAQ is designed, engineered and manufactured in India by ClimMaTech. ## Data Logger (CLM-DL01): High-Performance Industrial Data Logger (upcoming) URL: https://climmatech.com/products/data-logger A rugged industrial data logger for remote hydrological and environmental monitoring. It collects readings from field sensors, stores them locally and sends them securely to the ClimMaTech cloud over cellular and other networks. Programmable relay outputs can trigger sirens and other equipment. Specifications: - Sensor Inputs: Analog voltage and 4-20 mA current loop inputs; digital status and pulse/counter inputs - Digital Sensor Interfaces: SDI-12, RS-485 (Modbus RTU) and serial interfaces - Data Storage: Non-volatile onboard memory with storage expansion; readings are kept locally during network outages and sent when the link returns - Sampling & Reporting: User-configurable sampling and transmission intervals, with threshold-based alerts - Protocols & Security: MQTT, HTTPS/REST, SFTP and Modbus; encrypted transmission (TLS) and device authentication - Relay Outputs: Programmable relay outputs for sirens (RAKSHAK) and other equipment - Power: Wide-range DC input with integrated solar charge controller; low-power sleep modes for solar and battery sites - Timekeeping: Battery-backed real-time clock with network time sync - Enclosure: Weatherproof enclosure with mounting brackets for pole, bridge or wall - Operating Temperature: -40°C to +70°C - Integration: Connects natively to the ClimMaTech cloud and dashboard, with open APIs Connectivity: GSM (2G / 3G / 4G), NB-IoT (option), LoRa (option), Wi-Fi (option), Ethernet (option), MQTT, HTTPS / REST, SFTP, Modbus Applications: Multi-Sensor Aggregation; Remote Site Telemetry; Early Warning Triggering FAQs: Q: What sensors can it connect to? A: Analog voltage and 4-20 mA sensors, pulse and status inputs, and digital sensors over SDI-12 or RS-485 (Modbus RTU). That covers ClimMaTech's radar sensors and most third-party hydrological and weather sensors. Q: What happens if the network goes down? A: The logger keeps recording and running its alerts and relay outputs locally, then sends the stored data when the connection returns. Q: Can it trigger external devices like sirens? A: Yes. Programmable relay outputs can activate the RAKSHAK siren or other equipment automatically when a threshold is crossed, or on remote command. Q: Can it run on solar power? A: Yes. It has an integrated solar charge controller and low-power sleep modes for off-grid sites. Q: How secure is the data transmission? A: Data is sent over encrypted connections (TLS) and each device authenticates to the ClimMaTech cloud. Q: Can the data logger be used to build an AWLR or AWVLR station? A: Yes. With 4-20 mA, SDI-12 and RS-485 inputs it can read a radar level sensor such as TARANG, or a level and velocity radar such as PRAVAAH, store the readings and send them over cellular and other networks. The data logger is coming soon. Q: Where is The data logger made? A: The data logger is designed, engineered and made in India by ClimMaTech. It is built for outdoor use anywhere, with an operating range of -40°C to +70°C and GSM (2G / 3G / 4G) connectivity. It is coming soon. # Solutions ## Flood Early Warning Systems URL: https://climmatech.com/solutions/flood-warning Advanced prediction and localized alerting to protect communities from rapid-onset riverine and flash floods. - Alert lead time: 30 min – 48 h (Depending on upstream conditions.) - Water level accuracy: ± 1 mm (Radar sensing, with no sensor in the water.) - Surface velocity range: 0.02 – 20 m/s (Pravaah radar, ± 1% of measured velocity.) - Operating range: −40 to +70 °C (Every ClimMaTech device.) FAQs: Q: What is a flood early warning system? A: A flood early warning system observes a river upstream, decides when a warning is needed, and sounds the alarm in the community. ClimMaTech combines radar sensors, Rakshak sirens and the Aagah app so that each step happens automatically. Q: How much warning time does a system give? A: It depends on the river. Warning times range from 30 minutes to 48 hours, depending on upstream conditions and how far upstream the first sensor sits. Q: How much does a flood early warning system cost? A: Our systems are designed to be low cost. The price depends on how many sites you monitor and which devices you choose, so we prepare a proposal for each project. Tell us about your site and we will suggest a layout and a quote. Q: Does it work where there is no mobile network? A: Yes. Devices can use GSM (2G / 3G / 4G), LoRa or VSAT, chosen for each site, and the sirens run on solar power with battery backup. Q: Can the sirens work with our existing monitoring system? A: Yes. Rakshak accepts authorised alert commands through an open API from any monitoring system or server, so it can be added to a system you already have. ## Continuous River Monitoring URL: https://climmatech.com/solutions/river-monitoring Long-term hydrological data collection and telemetry from AWLR and AWVLR stations, for government water resources departments and environmental research. - Level measuring range: 0 – 50 m (Customisable, with Tarang and Pravaah.) - Water level accuracy: ± 1 mm (0.5 mm resolution.) - Surface velocity range: 0.02 – 20 m/s (Pravaah radar, ± 1% of measured velocity.) - Cellular on every device: 2G / 3G / 4G (With LoRa and other options by site.) FAQs: Q: What is an AWLR or AWVLR station? A: An AWLR is an automatic river water level recorder: a level sensor, a data logger, telemetry and power. An AWVLR also records surface velocity. Tarang is the sensor for an AWLR station and Pravaah is the sensor for an AWVLR station. Q: Can the system measure river discharge? A: It measures water level and surface velocity, the two inputs to discharge. Calculating discharge also needs a surveyed cross-section of the channel and a calibrated relationship between surface and average velocity. We can help you plan this. Q: How much does a river monitoring system cost? A: Our systems are designed to be low cost. The price depends on how many sites you monitor and which devices you choose, so we prepare a proposal for each project. Tell us about your site and we will suggest a layout and a quote. Q: How does the data reach us? A: Readings go over GSM (2G / 3G / 4G), LoRa or other options to the ClimMaTech cloud, where DeviceCloud shows live readings, history and alerts. Devices also support MQTT and Modbus for connecting to your own systems. Q: Do the stations need mains power? A: No. They run on solar power with a battery, so they can be installed at remote sites. ## RTDAS: Real-Time Hydromet Telemetry URL: https://climmatech.com/solutions/rtdas-hydromet-telemetry A real-time data acquisition system (RTDAS) for river basins: AWLR and AWVLR stations, rain gauges and, soon, automatic weather stations, reporting over GSM, LoRa or satellite to one central view. - Water level accuracy: ± 1 mm (Radar level, 0 – 50 m (customisable).) - Surface velocity range: 0.02 – 20 m/s (Pravaah radar, ± 1% of measured velocity.) - Cellular telemetry: 2G / 3G / 4G (With LoRa and satellite options by site.) - Operating range: −40 to +70 °C (Level and velocity stations.) FAQs: Q: What is an RTDAS? A: A real-time data acquisition system is a network of field stations that measure rainfall, water level and other river data, and send it to a central system automatically. Q: What can the stations measure? A: Water level and surface velocity with radar, and rainfall with a tipping-bucket rain gauge. Automatic weather stations can be added through partners now, and from ClimMaTech when our own station launches. Q: What are the rain gauge specifications? A: A tipping-bucket gauge with an 8 in (about 200 mm) collector. It records 0.25 mm of rain per tip and is accurate to ± 5% at 50 mm/h. Q: How much does an RTDAS cost? A: Our systems are designed to be low cost. The price depends on how many sites you monitor and which devices you choose, so we prepare a proposal for each project. Tell us about your site and we will suggest a layout and a quote. Q: How do we see the data from all the stations? A: DeviceCloud shows every station on one map with live readings, history and alerts. If you need the data in your own system, devices support MQTT and open APIs. ## Canal & Irrigation Monitoring URL: https://climmatech.com/solutions/canal-irrigation Live water level and surface velocity readings at canal regulators, branch junctions and tail reaches, so irrigation teams can see changing conditions and plan field action. - Two complementary readings: Level + velocity (Use Tarang for level points and Pravaah where surface velocity is needed.) - Sensors above the water: Non-contact (Mounted on a suitable bridge, regulator structure or bracket.) - Remote field sites: Solar compatible (Power and telemetry are configured for each location.) - Hydrological information: HIS inputs (Field observations can feed a wider Hydrological Information System through an agreed integration.) FAQs: Q: Is canal monitoring the same as an HIS? A: No. HIS stands for Hydrological Information System and covers collecting, processing, storing and sharing hydrological data. A canal monitoring network supplies field observations to that wider system. Q: Can the system measure canal discharge? A: Radar measures water level and surface velocity. Calculating discharge also requires a surveyed cross-section and a validated relationship between surface and mean velocity, configured for the measuring site. Q: Does it automatically control canal gates or pumps? A: The solution provides monitoring and data integration. Automatic gate or pump control is not included in the standard offering; it requires separate actuators, control logic and integration with the existing operating system. Q: Can it work with our existing HIS or SCADA? A: Devices support interfaces such as MQTT, Modbus and open APIs, depending on the selected device. We agree the data mapping, network access and integration scope with your team before deployment. Q: Where should the sensors be installed? A: Typical locations include the head regulator, main-canal measuring sections, branch junctions and tail reaches. Final positions depend on mounting clearance, water surface conditions, power and communication coverage. Q: How much does a canal monitoring system cost? A: We prepare a proposal for each project based on the sites, devices, telemetry and integration required. Share your canal layout and monitoring needs with our team. ## Dam & Reservoir Monitoring URL: https://climmatech.com/solutions/dam-reservoir A live picture of reservoir level and spillway flow for dam and hydropower operators, with warnings for the communities downstream. - Reservoir level accuracy: ± 1 mm (Measured from above, with no contact.) - Level resolution: 0.5 mm (Fine enough to see small changes in storage.) - Siren trigger target: Up to 5 s (From alert command to alarm, subject to communication conditions.) - Siren capability: Up to 24 h (Solar with battery backup; depends on configuration.) FAQs: Q: How does a dam monitoring system measure reservoir level? A: Radar level sensors are mounted above the water and measure the level without touching it, to ± 1 mm over a 0 to 50 m range (customisable). Q: Can it warn the community downstream? A: Yes. Level readings can trigger Rakshak sirens downstream through an open API, so a warning does not depend on someone making a call. Q: How much does a dam and reservoir monitoring system cost? A: Our systems are designed to be low cost. The price depends on how many sites you monitor and which devices you choose, so we prepare a proposal for each project. Tell us about your site and we will suggest a layout and a quote. Q: Does it keep working through floods and storms? A: Radar sensors measure from above the water, so floods and debris do not reach the sensing elements. Devices run on solar power with battery backup, in a weatherproof enclosure, over an operating range of -40°C to +70°C. ## Smart City Urban Flooding URL: https://climmatech.com/solutions/urban-flooding Level sensing at underpasses and municipal drains, with local warnings, so cities can see the next waterlogging point and act early. - Water level accuracy: ± 1 mm (Compact radar level sensor, no contact with the water.) - Cellular on every device: 2G / 3G / 4G (Reporting from underpasses and drains.) - Siren trigger target: Up to 5 s (From alert command to alarm, subject to communication conditions.) - Operating range: −40 to +70 °C (Every ClimMaTech device.) FAQs: Q: What is an urban flood monitoring system? A: Radar level sensors at underpasses, drains and outfalls report water levels in real time, so a city can see which low point is filling first and warn people there. Q: Can it monitor waterlogging at underpasses? A: Yes. A Tarang level sensor mounted above the lowest point measures the water level without touching the water, and a local siren or alert can warn people at the spot. Q: How much does an urban flood monitoring system cost? A: Our systems are designed to be low cost. The price depends on how many sites you monitor and which devices you choose, so we prepare a proposal for each project. Tell us about your site and we will suggest a layout and a quote. Q: Does it need a power connection? A: No. The devices are low power and solar compatible, so they can be installed where there is no mains supply. Q: How do city teams see all the sites? A: DeviceCloud shows every sensor on a map with live readings and alerts. # Platform (software) - Aagah: Mobile app that brings flood forecasts, weather forecasts and early warnings to people. https://climmatech.com/platform/aagah - DeviceCloud: Cloud for ClimMaTech devices: device list and map, live readings, history, alerts and reports. https://climmatech.com/platform/devicecloud - Rakshak Control Centre: Web application for operators who run many warning sirens: alert areas, drills, approvals, delivery confirmation and an audit trail. Accepts CAP alerts and API alerts. (upcoming) https://climmatech.com/platform/rakshak-control-centre # Articles - How far can a siren be heard? Sound propagation and coverage design for community warning: The acoustics behind outdoor warning sirens: distance loss, air absorption, terrain shielding, background noise and building attenuation, with worked numbers and a method for planning coverage in a valley. https://climmatech.com/resources/blog/siren-acoustics-coverage-design-community-warning - Telemetry for remote hydromet stations: link budgets for GSM, LoRa and satellite: How to decide whether a river station should use cellular, LoRa or satellite, with the path-loss arithmetic, terrain obstruction, duty-cycle limits, airtime, energy and reliability patterns that decide it. https://climmatech.com/resources/blog/telemetry-link-design-gsm-lora-satellite-hydromet-stations - Tipping-bucket rain gauges: resolution, error sources, siting and calibration: How a tipping-bucket gauge turns rain into pulses, what limits its accuracy at both ends of the intensity range, why the gauge samples almost nothing of the catchment, and how to check one. https://climmatech.com/resources/blog/tipping-bucket-rain-gauge-errors-siting-calibration - Rating curves: from stage to discharge, and how far to trust them: How a stage-discharge relation is built and fitted, why extrapolating it to a flood is where the largest errors hide, what makes it shift or loop, and what to do about all of it. https://climmatech.com/resources/blog/rating-curves-stage-discharge-uncertainty - Surface velocity radar for rivers: Doppler physics, the velocity coefficient and noise: How a radar measures the speed of a river it never touches, what the number really represents, where it goes wrong, and how to turn it into discharge with an honest uncertainty. https://climmatech.com/resources/blog/surface-velocity-radar-doppler-river-flow-measurement - Flash floods and river floods: the hydrology of warning time: Why a flash flood leaves minutes and a river flood leaves days, how to work out how much time a system can actually buy, and how that decides sensor placement, reporting rates and alarm design. https://climmatech.com/resources/blog/flash-floods-vs-river-floods-warning-time - River monitoring in hill and Himalayan catchments: response times, siting, power and detection logic: Steep catchments respond in minutes to hours. Here is the hydrology behind that, and what it means for where sensors go, how they are powered and connected, and how an alarm should be triggered. https://climmatech.com/resources/blog/river-monitoring-in-hill-and-himalayan-catchments - How to specify a river water level station: range, accuracy, mounting, power and data quality: An engineering checklist with the calculations behind it: setting the measuring range, deriving the accuracy you need from the discharge you want, checking beam geometry, sizing power and testing the station before you accept it. https://climmatech.com/resources/blog/how-to-choose-a-river-water-level-sensor - Radar, ultrasonic, float and pressure water level sensors compared: physics, error budgets and field behaviour: How each of the four common stage sensors actually measures, where its error comes from, and what the standards and field studies say about each. With worked numbers. https://climmatech.com/resources/blog/radar-vs-ultrasonic-float-pressure-water-level-sensors - RTDAS explained: architecture, network design and data quality for real time hydromet monitoring: What a real time data acquisition system is made of, how to decide where stations go and how often they report, and what separates a network that works from one that quietly stops. https://climmatech.com/resources/blog/what-is-rtdas-real-time-data-acquisition-system - Can radar measure river discharge? Methods, uncertainty budgets and what a station can honestly report: Non-contact radar gives you river stage and surface velocity. Turning those into flow takes a surveyed channel, a calibrated coefficient and an honest uncertainty. Here is how the methods compare and how to plan for each. https://climmatech.com/resources/blog/can-radar-measure-river-discharge - Early warning dissemination: channels, the Common Alerting Protocol and writing a warning people act on: No single channel reaches everyone. How sirens, SMS, cell broadcast and apps complement each other, how the Common Alerting Protocol structures an alert, and what the research says a warning message must contain. https://climmatech.com/resources/blog/early-warning-dissemination-sirens-sms-cap - Inside an AWLR and AWVLR station: interfaces, resolution, power, protection and data integrity: What an automatic river water level recorder is made of, how the sensor talks to the logger and why that choice can cost you millimetres, and what keeps a station honest for years. https://climmatech.com/resources/blog/awlr-awvlr-automatic-river-water-level-recorder-guide - Beyond the device: Aagah, DeviceCloud and the Rakshak Control Centre: Sensors and sirens do the work on site. Three pieces of software make sure the right people can see it and act on it. https://climmatech.com/resources/blog/the-software-behind-climmatech-devices - GSM vs LoRa for flood warning sirens: how the last mile gets its alert: A warning is only as good as its slowest link. A practical look at choosing GSM, LoRa or VSAT for community sirens. https://climmatech.com/resources/blog/reaching-communities-gsm-lora-sirens - Edge AI for flood monitoring: seeing the event, not just the number: Why we put the intelligence on the device, and what it means for sites where the network is the first thing to fail. https://climmatech.com/resources/blog/edge-ai-flood-monitoring-doordrishti - How a flood early warning system works: observation, forecasting, decision and response: A flood warning is a chain of five links. Each has its own engineering, its own failure modes and its own share of the time you have. Here is how the chain fits together, with a worked routing example and the numbers that measure whether it works. https://climmatech.com/resources/blog/how-a-flood-early-warning-system-works - Why surface velocity matters as much as water level: A river's height tells you how much water there is. Its speed tells you how soon it will arrive. https://climmatech.com/resources/blog/water-level-and-velocity-together - How FMCW radar measures water level: chirps, beat frequency, phase and the installed error budget: How a radar that never touches the river reaches millimetre precision, what limits it in the field, and why the accuracy on the datasheet is not the accuracy of the installed station. https://climmatech.com/resources/blog/radar-water-level-sensing-explained - Seven Minutes to the Border: A Forensic Reconstruction: A catastrophic flood tore down the Nepal–China frontier on 26 August 2026. The official story was a glacial lake bursting its banks. The timing says something else entirely happened. https://climmatech.com/case-study