Liquid level transmitters with a 4 to 20 milliamp current loop output signal for determining liquid depth or the fluid level by measuring the hydrostatic pressure.
A 4-20mA output hydrostatic level transmitter is commonly used as part of an on-site control & monitoring system to manage quantity of liquids and ensuring minimum and maximum liquid levels are not exceeded.
Select a 4 to 20 mA current output hydrostatic level sensor for controlling a pump in a borehole or managing the contents of liquid storage tanks.
LMP307 Submersible Level Transmitter - Submersible level transmitter for measuring liquid level with a 4-20mA current loop or a 0-10V voltage output plus optional ATEX approval for intrinsically safe use in hazardous areas in ranges from 1mH2O up to 250mH2O. The LMP307 is suitable for use on potable water with no leaching, and can be supplied with a drinking water certificate according to DVGW and KTW.
LMK382 Low Range IP68 Waste Water Level Transmitter - Submersible Low Range waste water level transmitter with intrinsically safe option for monitoring the level of sewage and effluent in water treatment plants.
LMK458 Marine Approved Hydrostatic Level Transmitter - Marine approved level transmitter with 4-20mA output for measuring level of contents inside ship ballast, fuel, liquid cargo or wastewater tanks
LMP305 Borehole Level Transmitter - Submersible stainless steel pressure transmitter ideal for geotechnical surveying with a 19mm diameter for measuring hydrostatic water level in bore-holes.
18.605 G Low Cost Submersible Diesel Fuel and Water Tank Level Sensor - Low cost OEM diesel fuel or water level sensor for installing inside or outside a storage tank. 
LMK387 Cleanable Sewage and Sludge Pressure/Level Sensor - Rugged and easily cleanable pressure/level sensor for use with waste water sewage or sludge.
- Cement plant process water basin level sensor
- 12ft high ink tank screw-in 4-20mA output level sensor
- Fleet management system submersible 3000mm height petrol tank level ATEX rated pressure sensor
- Floating dry dock ballast tank 14ft range 4-20mA output submersible seawater level sensor
- -5…+50degC temperature and 10m range level dual 4-20mA submersible borehole transmitter
- Dairy farm 6m high milk storage vat 4-20mA level transmitter
- Filtered rainwater cistern 13ft range 4-20mA submersible drinking and cooking water level sensor
- ELPO car paint plant 40ft high wastewater tank level transmitter
- Drinking water approved 5ft range 4-20mA output submersible reservoir level sensor
- Grease trap waste receiving tank 2m range 4-20mA level transmitter
- Desalination plant seawater feed tanks 5m range 4-20mA output submersible level sensor
- 10ft range 4-20mA output submersible sea tide depth sensor