
Integrated Non-Contact Radar Water Level Monitoring Instrument RS485 Modbus Lora 4G Nb-IoT Liquid Level for Manhole. Ultra-Low Power Consumption: Advanced lithium battery design enables long-term stable operation without external power sources. IP68 Waterproof Rating: Completely dustproof and capable of prolonged immersion under water pressure for harsh environments. High Integration Design: Combines radar ranging, pressure measurement, RTU, 4G module, and battery in one all-in-one structure. Long Battery Lifespan: Equipped with 76AH battery providing a lifespan of 3 years or more for sustained monitoring. Flexible Communication Options: Supports 4G, Bluetooth, MQTT protocol, and offline data retransmission for reliable connectivity. Certified Quality Assurance: CE and RoHS certified with 100% visual and function inspection for finished products.