Liquid level transmitter, imported pressure sensitive element of sensor and temperature compensation by computer laser trimming resistor, junction box adopts integration design. Has a dedicated terminal, and digital display, installation, calibration and maintenance is convenient. This series product applies to oil, water conservancy, chemical industry, metallurgy, power, light industry, scientific research, environmental protection and other enterprises and institutions, realize the measurement of liquid level height and is suitable for various occasions all environments and all kinds of corrosive fluids. Features variety of ranges; Digital pressure display; Zero, range, convenient debug; Reverse polarity protection, and current limiting protection; Lightning resistance, impact resistance; Intrinsically safe explosion-proof; Small volume, beautiful appearance, high cost performance; High precision, high stability, high reliability.