Smart Ultrasonic Liquid Level Monitoring Sensor with Relay Alarm Control for Well Pump River Reservoir

Product Introduction

This ultrasonic level sensor measures liquid level without touching the liquid. It works by sending out sound waves and receiving the echo from the liquid surface. The sensor then calculates the distance to give you the exact level. It is easy to install – just mount it above the tank or water surface. The sensor is IP68 waterproof, works in harsh environments, and supports 4-20mA, RS485 Modbus, and relay outputs. No regular cleaning or maintenance is needed.

Application Range

• Water treatment plants – Monitor water levels in tanks, basins, and channels.

• Wastewater treatment – Works with dirty, corrosive, or foamy liquids.

• Industrial tanks – Measure chemicals, oil, diesel, and other liquids.

• Pumping stations – Control pump start/stop with relay output.

• River & reservoir monitoring – Non-contact water level monitoring for flood control.

• Food & beverage industry – Sanitary liquid level measurement (non-contact keeps it clean).