4-20mA Submersible Static Water Level Sensor — Liquid Level Meter for Tanks, High Sensitivity & Precision (IP68)

Submersible level transmitter for static water measurement, combining small size, low cost and easy installation with high accuracy, high reliability and high stability. The unit is rated IP68 and can work under the water for continuous monitoring. It operates on the principle that the hydro static pressure of measured level is proportional to the height of this liquid, and it adopts the piezoresistive effect of diffused silicon to turn pressure into an electrical signal. After temperature compensation and linear calibration, the signal is converted into standard current, voltage and RS485 signals (including 4-20mA) for output. These interfaces allow direct connection to PLC/DCS, display instruments and computers, and support remote signal transmission.