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KH.WTU-V 4G Solar Telemetry Terminal RTU with Data Acquisition and Wireless Transmission
Product Introduction
The KH.WTU-V 4G Telemetry Terminal RTU is an integrated remote terminal unit designed for data collection, local storage, and wireless transmission in hydrological, environmental, and agricultural monitoring systems. It supports seamless integration with IoT platforms and mobile applications, enabling real-time data access, remote management, and stable long-term operation in unattended field environments.
The device adopts a highly integrated structural design, significantly reducing on-site installation complexity while improving system reliability and operational efficiency.
Key Features
Highly Integrated Design: Built-in 4G full-network DTU, image capture module, solar charging controller, lightning arrester, and other core components, eliminating the need for external modules.
Industry-Leading Architecture: Original structural design provides a compact, economical, and reliable solution for field telemetry applications.
Patented Wireless Networking: Integrated RF transmission module supports local wireless networking, reducing wiring requirements and simplifying installation and maintenance.
Solar Power Management: Supports external solar battery charging with three-stage intelligent charging, power detection, and alarm functions.
Ultra-Low Power Consumption: Designed for long-term unattended operation in remote monitoring sites.
Comprehensive Protection: Supports lightning protection, power monitoring, and abnormal status alarms to ensure stable operation in harsh environments.
Application Scenarios
Reservoir and flood control monitoring stations
Mountain torrent and flash flood monitoring
Urban waterlogging monitoring systems
Irrigation districts and agricultural monitoring
Hydrological and oceanographic stations
Pumping stations, sluice gates, and hydropower stations
Meteorological stations and soil moisture monitoring 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 |
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