

KH.WTU-V 4G Solar Telemetry Terminal RTU
Remote Solar-Powered 4G Wireless Telemetry Terminal for Hydrology Flood Monitoring Irrigation Agriculture and Environmental Observation
Product Introduction (pdf)
Product Introduction
The KH.WTU-V 4G Solar Telemetry Terminal RTU is a compact, solar-powered remote data acquisition device designed for hydrology stations, flood monitoring systems, irrigation networks, smart agriculture, and environmental telemetry. This highly integrated 4G RTU supports real-time wireless data transmission, long-term unattended outdoor operation, and seamless IoT integration.
With intelligent solar power management, lightning protection, and low-power design, the KH.WTU-V ensures continuous environmental monitoring for reservoir water levels, urban drainage systems, mountain torrent warning networks, and agricultural field observation. Its plug-and-play setup simplifies installation for hydrological and meteorological monitoring stations, making it ideal for smart farming, flood early warning, and remote environmental data collection.
Key Features
Integrated Solar-Powered 4G RTU: Combines remote data acquisition, solar charging, 4G DTU, and lightning protection in one compact device.
Compact and Durable Architecture: Space-saving design suitable for outdoor hydrology and agricultural monitoring stations.
Wireless Networking Capability: Built-in RF module enables local wireless telemetry and IoT data integration, reducing maintenance.
Intelligent Solar Power Management: Supports external solar battery charging, three-stage intelligent charging, power detection, and alarm notifications.
Ultra-Low Power Consumption: Optimized for remote, off-grid telemetry stations and long-term field operation.
Comprehensive Protection Features: Lightning and power anomaly protection ensure stable monitoring in harsh environments.
Application Scenarios
Reservoir water level monitoring, flood control, and early warning systems
Mountain torrent and flash flood monitoring networks
Urban drainage and waterlogging telemetry stations
Irrigation district and smart agricultural field monitoring
Hydrological and oceanographic observation networks
Pumping stations, sluice gates, and hydropower facility monitoring
Meteorological stations and soil moisture observation sites
Technical Parameters
| Parameter | Specification |
|---|---|
| Supply Voltage | 10–30 VDC |
| Multiplexing Interface | 1 channel (configurable RS485 / RS232) |
| Static Power Consumption | ≤1 mA (basic type, 12 V power supply) |
| Working Current | ≤6.5 mA (basic type, 12 V power supply) |
| RF Operating Frequency | 433 MHz (visible transmission distance up to 3 km) |
| Gray Code Input | 14-bit |
| Analog Input | 2 channels (4–20 mA) |
| Analog Acquisition Accuracy | 0.1% FS |
| Switch Input | 2 channels (low level valid) |
| Switching Output | 2 channels (12 V / 500 mA driving capability) |
| RS485 Interface | 2 channels (for digital sensors) |
| RS232 Interface | 2 channels |
| Clock Accuracy | Better than ±1 s/day |
| Operating Temperature | -45 to +70 ℃ |
| Storage Temperature | -45 to +80 ℃ |
| Ambient Humidity | <98% RH |
| MTBF | ≥50,000 hours |

