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.
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.
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.
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.
- Filtered rainwater cistern 13ft range 4-20mA submersible drinking and cooking water level sensor
- 16 inch range 4-20mA output submersible shallow water tank level sensor
- Farm drainage open well 60ft range 4-20mA output submersible liquid level sensor
- 50cm range 4-20mA water level sensor for hot tub and spa service water tanks
- 6m range 4-20mA output water tank level sensor for external fitting
- Greenhouse clean water tank 15 mWG 4-20mA submersible level sensor
- 3m range 4-20mA output submersible hot water tank level sensor
- 12 inch range 4-20mA output submersible freshwater tank level sensor
- 0.05 barg range 4-20mA out waterproof low range water level sensor
- 350 feet deep well level pressure sensor
- Ground water monitoring 10mH2O g range 4-20mA out level sensor
- 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
- Low cost, upstream/downstream, 5m range, fresh-water, weir level sensor
- Small diameter dip well water level transducer
- 300 cm water level sensor for submersing in tank
- Hydropower reservoir submersible hydrostatic level transmitter & indicator
- Potable water underground 10ft dia storage tank temperature and level sensor
- Rainwater harvesting depth sensor for 1.25 metre deep tank
- Depth measurement of surface water flowing to sea
- Water depth and temperature transmitter for 700 foot deep borehole
- Protecting low range river level sensor from storm surges
- Cooling tower basin water level transmitter
Product Help
Specifying water level transmitter with 4-20mA output requirements
Some questions to ask when defining the product requirements for a water level transmitter with 4-20mA output.
Installation type
How do you want to install the water level transmitter, will it be mounted to the outside of a water tank, lowered inside a water tank, or suspended from a platform above the water surface?
Water type
What kind of water will you be measuring, freshwater, seawater, drinking water, chlorinated water or wastewater?
Level range
What range of water level in metres or feet do you need to measure over?
If measuring a water tank, is the tank air tight or vented to outside air pressure?
Accuracy
How accurate does the water level measurement need to be?
Will it be used to determine the quantity of water, or to protect from overfill or underfill?
Electrical connection
Do you have a preference on what type of electrical connector and 4-20mA signal cable to use?
Will the water level transmitter be exposed to an indoor or outdoor environment?
Could the water level transmitter be temporarily flooded or will it be permanent submerged?
If a cable is required, how long does it need to be to connect to the water level measurement instrumentation?
Process connection
If the water level transmitter is going to be external to a tank, how do you intend to mount the sensor if it is going to be fitted to the outside of a tank, what type and size of thread or flange?
Temperature measurement
Would you like to measure the water temperature as well with a separate 4-20mA signal from the same transmitter?
Checklist for water level transmitter with 4-20mA output requirements
Define your water level transmitter with 4-20mA output requirements using this checklist:
- Installation type?
- Water type?
- Level range?
- Accuracy?
- Electrical connection?
- Process connection?
- Temperature measurement?