

KH.WTU-V 4G Solar Telemetry Terminal RTU
Remote Solar-Powered 4G Wireless Data Logger | Hydrology Flood Monitoring | Smart Agriculture IoT | Environmental Telemetry Station
Product Introduction (pdf)
Product Introduction
The KH.WTU-V 4G Solar Telemetry Terminal RTU is a remote solar-powered 4G RTU designed for real-time environmental monitoring, hydrology stations, flood warning systems, irrigation networks, and smart agriculture IoT applications.
This highly integrated 4G RTU supports:
- Remote water level monitoring, river, reservoir, and dam management
- Flood early warning systems and flash flood monitoring
- Smart agriculture and irrigation field telemetry
- Soil moisture, rainfall, and meteorological data collection
- Integration with IoT platforms, SCADA, and telemetry networks
With solar power management, lightning protection, and low-power design, the KH.WTU-V ensures continuous, long-term outdoor operation in harsh environments. Its plug-and-play setup simplifies installation, ideal for off-grid hydrology monitoring, flood telemetry, and environmental IoT applications.
Key Features
- 4G Remote Telemetry RTU: Combines remote data acquisition, solar charging, 4G DTU, and lightning protection in one device.
- Durable Outdoor Design: Compact, rugged, IP65-rated, suitable for rivers, reservoirs, irrigation systems, and agricultural fields.
- Wireless Networking & IoT Integration: Built-in RF module, supports real-time cloud telemetry, SCADA systems, and smart agriculture IoT monitoring.
- Intelligent Solar Power Management: External solar battery support, three-stage smart charging, low battery alarm, and power detection.
- Ultra-Low Power Consumption: Designed for off-grid, remote environmental telemetry, with months-long unattended operation.
- Lightning and Surge Protection: Ensures stable data transmission in storms, industrial sites, and harsh outdoor environments.
Application Scenarios
- Reservoir and river water level monitoring for flood prevention and water resource management
- Mountain torrent and flash flood monitoring networks
- Urban drainage, stormwater, and waterlogging telemetry stations
- Irrigation district and smart agriculture field monitoring
- Hydrological, oceanographic, and environmental observation networks
- Pumping stations, sluice gates, and hydropower facility monitoring
- Meteorological stations, soil moisture, rainfall, and temperature monitoring
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 |

