4 to 20 mA current loop output water level transmitters with a for use with process instrumentation for measuring the level of water in a water well, water reservoir, river or water storage tank. Choose a water level transmitter to transmit a 4-20 milliamp current signal using two wires for both power supply and signal.
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. 
IMSTL IP68 Water Temperature and Depth Transmitter - Stainless steel 316L waterproof probe for measuring both water temperature and depth and generating two separate 4-20mA current loop measurement signals.- IWSL Potable Water Submersible Level Sensor - IP68 protect pressure sensor for monitoring potable water level to depths of 100 metres.
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.
LMK307 Submersible Waste Water Level Sensor - Submersible waste water level sensor with optional intrinsic safety certification for monitoring the level of sewage and effluent in water treatment plants.
LMP 308 Removable Waterproof Cable Connection Water Level Sensor - Groundwater, tank & reservoir water level detachable submersible cable hydrostatic liquid level sensor for multiple municipal water level measurement locations.
LMK306 Ground Water Level Transmitter - IP68 sealed hydrostatic level transmitter with a 17mm diameter for lowering into ground water boreholes for environmental monitoring of water level.
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.
- Underground rain water storage tank level sensor and readout for 2 metre depth
- Borewell water level sensor for 100m water height
- 200m deep well pump water level sensor, switch & display
- Dairy 100 deg C wash water tank 2m range submersible level sensor
- Filtered rainwater cistern 13ft range 4-20mA submersible drinking and cooking water level sensor
- Ground water monitoring 10mH2O g range 4-20mA out level sensor
- 350 feet deep well level pressure sensor
- 0.05 barg range 4-20mA out waterproof low range water level sensor
- 12 inch range 4-20mA output submersible freshwater tank level sensor
- 3m range 4-20mA output submersible hot water tank level sensor
- Greenhouse clean water tank 15 mWG 4-20mA submersible level sensor
- 6m range 4-20mA output water tank level sensor for external fitting
- 50cm range 4-20mA water level sensor for hot tub and spa service water tanks
- Farm drainage open well 60ft range 4-20mA output submersible liquid level sensor
- 16 inch range 4-20mA output submersible shallow water tank level sensor
- 300 cm water level sensor for submersing in tank
- Water temperature depth sensor for cooling tower sump
- Water depth and temperature transmitter for 700 foot deep borehole
- Low cost, upstream/downstream, 5m range, fresh-water, weir level sensor
- Depth measurement of surface water flowing to sea
- Water well level monitoring in 3/4″ dia sounding tube to 300ft
- Rainwater harvesting depth sensor for 1.25 metre deep tank
- Hydropower reservoir submersible hydrostatic level transmitter & indicator
- Protecting low range river level sensor from storm surges
- Small diameter dip well water level transducer
- Water tank level gauge transmitter with adjustable range
- Cooling tower basin water level transmitter
- Geothermal pool high temperature submersible level transmitter
- 40 ftH2O Hydroelectric power plant tail water elevation & temperature sensor