RS485 Level Sensor

◆ Digital communication technology.
◆ Data networking gathering.
◆ Advanced circuit design and software design.
◆ HART protocol or MODBUS protocol(RS485 interface).
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Product Details

RS485 Level Sensor

Model: ULB-I


RS485 level sensor is based on silicon piezoresistive technology and designed for liquid level measurement by using silicon die, processing electric circuit of smart level transmitter, and using digital temperature compensation technology with non linearity revision technology. The waterproof cable with vent hose of this level sensor is sealed connected with its housing.

The output of ULB-I level sensor is digital signal, which makes the sensor carry on transmission with computer directly.


◆ Digital communication technology

◆ Data networking gathering

◆ Advanced circuit design and software design

◆ HART protocol or MODBUS protocol(RS485 interface)


pressure mediumgas or liquid compatible to wetted stainless steel
pressure ranges0~1mH2O...200mH2O
output signal4~20mA
communicationsMODBUS protocol RS485 interface or HART protocol
accuracy 0.1%FS,0.25%FS(standard),0.5%FS
long-term stability <0.2%FS/year
supply voltage8~28VDC(RS485 interface),12~30VDC(HARTprotocol)
insulation resistance100MΩ@50VDC
electrical connectionWater proof connector with 7 5mm Polyethylene cable with vent hose
material of pressure membrane316L


This RS485 level sensor has already widely used for water & other liquid level measurement and control in petroleum, chemical industry, water conservation etc.

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Hot Tags: RS485 level sensor, China, suppliers, manufacturers, vendors, uses, buy, price list, price in China


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