KJT liquid level sensor (hydrostatic level meter/level transmitter/level sensor/water level sensor) is a kind of pressure sensor to measure liquid level. Hydrostatic input level transmitter (level meter) is based on the principle that the measured liquid static pressure is proportional to the height of that liquid, and adopts foreign advanced isolated diffuse silicon sensitive element or ceramic capacitive pressure sensitive sensor to convert the static pressure into electrical signal, and then after temperature compensation and linear correction, it is transformed into a standard electrical signal (generally 4~20mA/1~5VDC).