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.
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.
IMCL Low Cost Submersible Pressure Sensor- Economical IP68 protected sensor with stainless steel 316L housing and Ceramic strain gauge sensing diaphragm for measuring liquid depth pressure.- IWSL Potable Water Submersible Level Sensor- IP68 protect pressure sensor for monitoring potable water level to depths of 100 metres.
- 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.
MTM3000 10mm diameter submersible miniature pressure transducer- MTM3000 Miniature Level Sensor specially designed for inserting down very small boreholes in wells, dams and many geophysical research applications.
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. 
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.
LMK331 Screw-In Ceramic Level Transmitter- Level pressure sensor with semi-flush ceramic diaphragm and stainless steel or PVDF wetted parts in ranges from 0-4 to 600mH2O gauge.
DPT200 Pressurised Tank Level Differential Pressure Transmitter- Pressurised tank liquid level differential pressure cell transmitter for process plant storage.
LMK 487 Submersible Ballast Tank and Draught Level Pressure Transmitter- A 22mm diameter titanium body seawater depth and level probe with a 4-20mA output with Lloyds and DNV-GL ship approval, for monitoring the quantity of ballast or the draft of a ship’s hull.
DS200 Combined Hydrostatic Level Switch, Gauge and Sensor- Three in one hydrostatic level switch, digital level gauge and level sensor with level ranges from 1 mWG up to 600 mWG (3.3 to 1969 ftWG).
LMK807 Plastic Submersible Level Transmitter- IP68 mid range pressure transmitter for measuring the level of highly contaminated and aggressive liquid media with a body made from PP-HT.
- Underground rain water storage tank level sensor and readout for 2 metre depth
- 0.2 bar tank level pressure sensor for fuel oil up to 2m deep
- Low cost hydrostatic sensor for measuring depth of Diesel up to 2 metres
- 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
- Canola oil tank hygienic level sensor & indicator with high temperature protection
- Underwater 50 metre sea depth 4-20mA output sensor
- Plastic seawater depth probe with 20ft range & 4-20mA out
- Swimming pool submersible pressure transmitter with 300 mbar range
- Sulfuric acid 12-15% conc. drop-in level probe for 10m high tank
- Ferric Chloride solution hydrostatic level transmitter