HPT-34 Submersible Level Transmitters use high performance piezoresistive pressure sensor as sensing elements. It measures liquid static pressure accurately which is positive proportional to liquid depth, transmitting pressure signal into standard current/voltage output signal by amplifier circuit board. The product has high accuracy, compact size and easy operation characteristics, for it can be submersible into the liquid to measure level from transmitter bottom to liquid surface. For the liquid measure and control of petroleum, chemi-industry, power station, city water supply and drainage and hydrology, it is widely used.