Differential pressure sensors can be used to measure liquid level in a tank. Here we will explain how a DP sensor is used to measure liquid level.
Hydrostatic
SDI-12 Hydrostatic Liquid Level Sensors
SDI-12 interface hydrostatic level sensors with a serial digital interface for measuring liquid depth and returning the reading to low powered telemetry instrumentation in remote locations.
Small Diameter Borehole Hydrostatic Liquid Level Sensors
Hydrostatic level sensors for measuring ground water level in small diameter bore-holes.
Combined Temperature and Hydrostatic Liquid Level Sensors
Combined temperature & level sensors which provide a signal output for both temperature and hydrostatic pressure measurement from one device.
Hazardous Area Submersible Hydrostatic Liquid Level Sensors
ATEX/IECEx intrinsically safe IP68 sensors for liquid level measurement in intrinsically safe installations on petrochemical, pharmaceutical, landfill and sewage treatment sites.
Brackish Water Hydrostatic Liquid Level Sensors
Brackish water depth and level sensors with housing material for use with tidal and coastal sea water.
Plastic Externally Fitted Hydrostatic Liquid Level Sensors
Plastic liquid level sensors with a PVDF housing and Ceramic diaphragm for fitting to the outside of a chemical storage tank.
Plastic Submersible Hydrostatic Liquid Level Sensors
Chemical resistant submersible level sensors with a PVC housing and ceramic diaphragm for measuring the hydrostatic level of harsh chemicals.
Freshwater Hydrostatic Liquid Level Sensors
Liquid level sensors for measuring the level of freshwater in tanks, boreholes, reservoirs, rivers, canals, streams and wells.
Marine Approved Hydrostatic Liquid Level Sensors
Marine approved hydrostatic liquid level sensors for use in marine environments.
Absolute Unvented Reference Hydrostatic Liquid Level Sensors
Non-vented absolute range hydrostatic level sensors for measuring liquid level where it is not possible or practical to connect a vented gauge reference.
Seawater Hydrostatic Liquid Level Sensors
Hydrostatic level sensors which are suitable for immersing in seawater for long periods to monitor depth and tidal changes.
Hazardous Area Externally Fitted Hydrostatic Liquid Level Sensors
Hazardous area external mount level sensors for use in zones where there is a high risk of explosive gases being present.
Fluid Depth, Density, Gravity, and Pressure Calculator
This tool will calculate any of parameters defined by the hydrostatic pressure formula P=ρgh which includes depth, density, gravity and pressure.
Industrial dishwasher 0-1m 0-10Vdc water level sensor
Compact and economically processed submersible hydrostatic pressure sensor, which can be submerged in or mounted externally to an industrial dishwashers integrated water tank.
LMK 858 Plastic Submersible Liquid Level Sensor with Removable Cable
Chemical resistant liquid level sensor with detachable signal cable for measuring quantity of aggressive media such acids and alkalis and sludge in tanks located outside of factory buildings.
LMK457 Marine Approved Level Transmitter
Marine approved level transmitter with 4-20mA current loop output for shipbuilding with optional all CuNiFe construction for sea-water compatibility in ranges from 0.4 mH2O to 250mH2O gauge.
SLS-A Analogue Output Submersible Level Sensor
This 23 mm diameter stainless steel oil filled silicon piezoresistive sensing capsule based submersible level sensor provides unamplified ratiometric millivolt output or an amplified analogue output signal corresponding to ranges from 0…0.5 mWG (20 inWG) up to 100 mWG (328 ftWG).
SLS-D SDI-12 Digital Interface Submersible Level Sensor
This submersible level sensor has SDI-12 digital communications which provides the level and temperature readings as a serial output using the SDI-12 version 1.4 protocol.
Potable water underground 10ft dia storage tank temperature and level sensor
measure the level and temperature of potable water in an underground water storage tank with a 10 ft diameter and a horizontal orientation.
Calculating required pressure range for fuel tank level measurement
Using a pressure measurement instrument to measure fuel level is very common, however most are scaled in bar or psi pressure ranges, and if they do happen to be scaled in level units, they are typically water level based, such as mH2O or ftH2O.
Fleet management system submersible 3000mm height petrol tank level ATEX rated pressure sensor
ATEX rated submersible pressure sensor for fleet management system (FMS) petrol applications .
ftH2O to bar Conversion Table
Scroll down to the required water column height between 1 and 40,000 feet of water to find the matching hydrostatic water pressure in bar.
mH2O to bar Conversion Table
Scroll down to the required water column height between 0.1 and 10,000 metres of water to find the matching hydrostatic water pressure in bar.
DCL 551 RS485 Modbus RTU Submersible Low Range Fuel, Oil & Wastewater Level Probe
Low range digital interface submersible liquid level probe with RS 485 Modbus RTU protocol serial bus communications for measuring level of fuel, oil and wastewater in low fill height open tanks.
DCL 571 RS485 Modbus RTU Submersible 22mm dia Groundwater & Wastewater Level Probe
22mm diameter digital interface submersible liquid level probe with RS 485 Modbus RTU protocol serial bus communications for installing in 1″ diameter tubes to measure groundwater level and measuring wastewater with nose cone removed.
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.
Borehole drawdown low voltage power supply 25m depth sensor
Low powered submersible level sensor with a 25 metre depth range, for use with a arduino controller to manage borehole drawdown and protect pump.
DCL 531 Modbus RTU RS 485 Submersible Stainless Steel Liquid Level Sensor
Digital submersible stainless steel liquid level sensor with a Modbus RTU protocol RS 485 serial bus interface.
Hot leachate level transmitter for 20m deep well monitoring on landfill sites
Submersible level transmitter for well on a landfill site to monitor hot and aggressive leachate.
Email notifying multiple 4m high water tanks level controller
Multichannel display, controller and email notifier with submersible or external mounted 4m range water level sensor
Dairy 100 deg C wash water tank 2m range submersible level sensor
Device for level sensing in a wash water tank used for the dairy industry, which has a short term working temperature rating up to 100 deg Celsius.
Canola oil tank hygienic level sensor & indicator with high temperature protection
Instrument for measuring the level of a used Canola oil tank, and tolerate temperatures of up to 190 degrees Celsius.
Ebb & Flow (Flood & Drain) Horticulture Hydroponic System 100mm Water Level Sensor
We are looking for a level sensor for measuring from 0 to 100mm of water height, in an ebb and flow horticulture hydroponic system used in greenhouses and indoor farms.
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.
Hydrostatic Liquid Level Switches
Hydrostatic pressure sensing switches for activating switch contacts at predetermined liquid level thresholds.
Automatic fire pump engine 48 inch range 0-10Vdc output diesel tank level sensor
A fuel tank mounted level sensor for measuring the height of diesel in a automatic diesel fire pump engine fuel tank over a range of 0 to 48in from the 1/4 BSP male process connection, and sending the corresponding 0-10Vdc signal through the weather proof cable electrical connection.
Floating dry dock ballast tank 14ft range 4-20mA output submersible seawater level sensor
A seawater compatible liquid level sensor for submerging in a floating dry dock ballast tank and measuring the depth over a range of 0 to 14ft from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
Filtered rainwater cistern 13ft range 4-20mA submersible drinking and cooking water level sensor
A drinking water approved submersible level sensor for submerging in a filtered rainwater cistern and measuring the depth over a range of 0 to 13ft from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
Irrigation water channel and storage dam 10m range SDI-12 submersible level sensor
A low powered telemetry system water level sensor for submerging in irrigation water channels or storage dams and measuring the depth over a range of 0 to 10m from the nose cone, and sending the reading via a SDI-12 serial interface through the submersible cable electrical connection.
Stilling well 3ft range SDI-12 interface lake water level sensor
A data acquisition compatible level sensor for submerging in a lake stilling well and measuring the depth over a range of 0 to 3ft from the nose cone, and sending the corresponding reading via an SDI-12 serial interface through the submersible cable electrical connection.
Brewing tank 2000mm range 0-5Vdc output stainless steel 316L beer level sensor
A brewery grade externally mounted liquid level sensor for measuring the height of beer over a range of 0 to 2,000mm from the triclamp process connection, and sending the corresponding 0-5Vdc signal through the CIP cleaning proof cable electrical connection.
Dairy farm 6m high milk storage vat 4-20mA level transmitter
A food grade externally mounted dairy level transmitter for measuring the height of milk in farm storage vats over a range of 0 to 6m from the dairy pipe process connection, and sending the corresponding 4-20mA signal through the water proof cable electrical connection.
-5…+50degC temperature and 10m range level dual 4-20mA submersible borehole transmitter
A submersible water temperature and level measurement transmitter for submerging in a borehole and measuring temperature over -5 to +50C, and depth down to 10m, from the nose cone, and sending each measurement with a separate 4-20mA signal through the submersible cable electrical connection.
120in range 0-5Vdc output submersible river depth sensor
A submersible water depth sensor for submerging in a river and measuring the depth over a range of 0 to 120in from the nose cone, and sending the corresponding 0-5Vdc signal through the submersible cable electrical connection.
ELPO car paint plant 40ft high wastewater tank level transmitter
An externally mounted liquid level transmitter for measuring the height of wastewater from a electro-coat paint operation in a car paint plant over a range of 0 to 40ft from the G1 1/2 flush diaphragm process connection, and sending the corresponding 4-20mA signal through the weather proof cable electrical connection.
Grease trap waste receiving tank 2m range 4-20mA level transmitter
An externally mounted liquid level transmitter for measuring the height of wastewater in a grease trap waste receiving tank over a range of 0 to 2m from the G1 1/2 flush diaphragm process connection, and sending the corresponding 4-20mA signal through the DIN plug electrical connection.
Overground horizontal cylindrical 10ft dia diesel fuel tank level sensor with 10-90% Vs output
An externally mountable fuel level sensor for measuring the height of diesel in a horizontal cylindrical overground fuel tank over a range of 0 to 10ft from the G1/4 male process connection, and sending the corresponding low power consumption ratiometric 10-90% Vsupp signal through the flood proof IP68 cable electrical connection.
Drinking water approved 5ft range 4-20mA output submersible reservoir level sensor
A submersible water level sensor for submerging in a drinking water reservoir and measuring the depth over a range of 0 to 5ft from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
Desalination plant seawater feed tanks 5m range 4-20mA output submersible level sensor
A marine approved submersible seawater level sensor for submerging in desalination plant water tanks and measuring the depth over a range of 0 to 5m from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
High temperature de-ionised water bath 300mm ATEX level sensor
Level sensor for high temperature liquids up to 125°C, ATEX approved intrinsically safe 4-20mA output and a low range to measure 0 to 300 millimetres.
200 inch range 0-10Vdc output level sensor for soap water with up to 50% NaOH concentration
An externally mounted liquid level transducer for measuring the height of soap water solution with up to 50% NaOH concentration, over a range of 0 to 200in from the G1 1/2 male process connection, and sending the corresponding 0-10Vdc signal through the DIN plug electrical connection.
Contaminated groundwater submersible plastic body 5 psi pressure transducer & display
This submersible pressure transducer and display can be used by landfill site pump techs to read leachate water level above the transducer at the well head.
40m RS485 Modbus RTU submersible borehole pump drawdown depth sensor
A submersible digital water depth sensor for submerging in a borehole and measuring the pump draw down depth over a range of 0 to 40m from the nose cone, and sending the corresponding RS485 Modbus RTU protocol coms through the submersible cable electrical connection.
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.
10ft range 4-20mA output submersible sea tide depth sensor
A submersible liquid depth sensor for submerging in the sea and measuring the tide depth over a range of 0 to 10ft from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
65 inch range 4-20mA output intrinsically safe IBC tote wastewater level transmitter
An intrinsically safe externally mounted liquid level transmitter for measuring the height of wastewater over a range of 0 to 65in from the 1/2 NPT male process connection, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.
2ft range SDI-12 interface submersible shallow depth streamflow level sensor
A shallow depth submersible liquid level sensor for submerging in a stream and measuring the depth over a range of 0 to 2ft from the nose cone, and sending the corresponding level reading via the SDI-12 interface through the submersible cable electrical connection.
3m range 4-20mA submersible freshwater tank level sensor for dust suppression systems
A submersible liquid level sensor for submerging in a dust suppression system freshwater tank and measuring the depth over a range of 0 to 3m from the flush diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
120cm range 4-20mA submersible chemical tank level sensor for farm water line mineral injection
A plastic submersible liquid level sensor for submerging in a chemical tank used for injecting minerals into water lines on farms, and measuring the depth over a range of 0 to 120 cm from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
40ft range 4-20mA output submersible hydroelectric dam headwater level sensor
A submersible headwater level sensor for submerging in a hydroelectric dam river and measuring the depth over a range of 0 to 40ft from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
10m range high resolution 4-20mA out submersible freshwater tank level sensor
A high resolution submersible water level sensor for submerging in a freshwater tank and measuring the depth over a range of 0 to 10m from the flush diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
10m high chemical tank 4-20mA output submersible PVC and ceramic protected liquid level sensor
A submersible PVC and ceramic based construction liquid level sensor for submerging in a gravity drained or pumped liquid chemical tank and measuring the depth over a range of 0 to 10m from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
5 metre range high accuracy 4-20mA output non-corrosive liquid level sensor with G1/4 male external fitting
A high accuracy externally mounted liquid level sensor for measuring the height of non-corrosive liquids over a range of 0 to 5m from the G1/4 male process connection, and sending the corresponding 4-20mA signal through the weatherproof cable gland electrical connection.
280 inch range 4-20mA output urea tank flush diaphragm level sensor
An externally mounted tank level sensor for measuring the height of urea over a range of 0 to 280in from the G3/4 male DIN3852 with flush diaphragm process connection, and sending the corresponding 4-20mA signal through the flood proof cable electrical connection.
LevCal Submersible Hydrostatic Liquid Level Sensor Calibration Kit
Pressure calibration kit for calibrating a submersible hydrostatic liquid level sensor out of the water using a battery powered automatic pressure controller calibrator to generate and accurate source of air pressure, and the necessary test hose and adapters to attach to the different types and styles of submersible pressure sensor probe ends.
16 inch range 4-20mA output submersible shallow water tank level sensor
A low range submersible liquid level sensor for submerging in a shallow water tank and measuring the depth over a range of 0 to 16in from the flush open face diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
3m range 4-20mA output submersible seawater dewatering tank level sensor
A low range submersible liquid level sensor for submerging in a seawater dewatering tank and measuring the depth over a range of 0 to 3m from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
140 inch range rangeable 4-20mA output wastewater level sensor and display for external fitting
A digital display combine with a rangeable externally mounted liquid level sensor for measuring the height of wastewater over a range of 0 to 140in from the 1/4 NPT male process connection, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.
Farm drainage open well 60ft range 4-20mA output submersible liquid level sensor
Low cost submersible water level sensor with ceramic thick film strain gauge technology for measuring farm drainage open well over 0 to 60 ftH2O hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
7.5 psig range 0-5V output submersible silicon diaphragm liquid level sensor
Low cost stainless steel 316L submersible liquid level sensor with silicon strain gauge technology for measuring over a 7.5 psi gauge hydrostatic pressure range and sending out a 0 to 5 volts signal.
Submersible 3mWG range 4-20mA output liquid level and PT1000 temperature sensor
LLow cost stainless steel 316L submersible liquid level sensor with PT1000 temperature sensor for measuring over a 0 to 3 mWG hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
50cm range 0.5-4.5Vdc output submersible small diesel fuel tank level sensor
A submersible liquid level sensor for submerging in a small diesel fuel tank and measuring the depth over a range of 0 to 50cm from the diaphragm behind the nose cone, and sending the corresponding 0.5-4.5Vdc signal through the submersible cable electrical connection.
50cm range 4-20mA water level sensor for hot tub and spa service water tanks
A low range water level sensor for measuring the height of freshwater service water tanks for hot tubs and spas over a range of 0 to 50cm from the G1/2 male process connection, and sending the corresponding 4-20mA signal through the weather proof cable electrical connection.
100 psig range 4-20mA output freshwater hydrostatic pressure transducer for tank level gauging use
A hydrostatic pressure transducer for tank level gauging use to measure pressure of freshwater over a range of 0 to 100 psi g from the 1/4 NPT male process connection, and sending the corresponding 4-20mA signal through the weatherproof cable electrical connection.
6m range 4-20mA output water tank level sensor for external fitting
A externally mounted water tank level sensor for measuring the height of water over a range of 0 to 6m from the G1/4 male process connection, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.
250cm range 0-10Vdc output plastic submersible chemical tank level sensor
A plastic submersible liquid level sensor for submerging in a chemical tank and measuring the depth over a range of 0 to 250cm from the nose cone, and sending the corresponding 0-10Vdc signal through the submersible FEP coated cable electrical connection.
Greenhouse clean water tank 15 mWG 4-20mA submersible level sensor
Low cost submersible liquid level sensor with ceramic thick film strain gauge technology for measuring level of greenhouse clean water tanks over a 0 to 15 mWG gauge hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
9m 4-20mA ship fish storage seawater storage tank submersible level sensor
A marine approved submersible liquid level sensor for submerging in a ship seawater tank for fish storage use and measuring the depth over a range of 0 to 9m from the flush diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
0.6 barg range 4-20mA output submersible silicon diaphragm liquid level sensor
Low cost stainless steel 316L submersible liquid level sensor with silicon strain gauge technology for measuring over a 0.6 bar gauge hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
150cm range 0-10Vdc output bulk milk cooler level sensor with dairy pipe fitting
A food grade externally mounted liquid level sensor for measuring the height of milk over a range of 0 to 150cm from the dairy pipe process connection, and sending the corresponding 0-10Vdc signal through the weather proof cable electrical connection.
0.5mH2Og range ratiometric 0.5-4.5V output submersible sump pump water level sensor
Low range submersible water level sensor with silicon strain gauge technology for measuring sump pump water level over a 0.5 mH2O gauge hydrostatic pressure range and sending out a ratiometric 0.5 to 4.5 volts signal.
50cm range 0-10Vdc output freshwater level sensor for external fitting
A low range externally mounted water level sensor for measuring the height of freshwater over a range of 0 to 50cm from the G1/4 male process connection, and sending the corresponding 0-10Vdc signal through the M12 connector electrical connection.
4000mm range 0-5Vdc output diesel tank level sensor for external fitting
A low range externally mounted liquid level sensor for measuring the height of diesel over a range of 0 to 4000 mm from the 1/4 NPT male process connection, and sending the corresponding 0-5Vdc signal through the DIN plug electrical connection.
50in range 4-20mA output chemical liquid level sensor with flush diaphragm and IS approval
An intrinsically safe externally mounted liquid level sensor for measuring the height of a liquid chemical over a range of 0 to 50in from the triclamp process connection, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.
2ft range 0-10Vdc output submersible freshwater tank level sensor
A low range submersible liquid level sensor for submerging in a freshwater tank and measuring the depth over a range of 0 to 2ft from the flush diaphragm, and sending the corresponding 0-10Vdc signal through the submersible cable electrical connection.
200cm range 0-5Vdc output submersible road flood stream depth and PT1000 sensor
A submersible water temperature and depth sensor for submerging in a road flood stream and measuring the depth over a range of 0 to 200cm from the nose cone, and sending the corresponding 0-5Vdc signal through the submersible cable electrical connection.
3m range 4-20mA output submersible hot water tank level sensor
A hi-temp media 125°C/257°F max submersible water level sensor for submerging in a hot water tank and measuring the depth over a range of 0 to 3m from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
10 metre range non-vented submersible absolute range pressure and barometric sensor
we need to measure water level from 0 to 10 metres with a submersible pressure sensor, but we are going to have difficulty in getting some of the sensors vented to atmosphere pressure.
12 inch range 4-20mA output submersible freshwater tank level sensor
A very low range submersible liquid level sensor for submerging in a freshwater tank and measuring the depth over a range of 0 to 12in from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
0.05 barg range 4-20mA out waterproof low range water level sensor
Waterproof low range water level sensor with silicon strain gauge technology for measuring over a 0.05 bar gauge hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
6m range 4-20mA submersible animal feed tank level and PT100 sensor
A hi-temp media 125°C/257°F max, RTD temperature measurement submersible liquid level sensor for submerging in an animal feed tank and measuring the depth over a range of 0 to 6m from the flush diaphragm, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
5m range 4-20mA output submersible seawater intake channel level sensor
A submersible saltwater level sensor for submerging in a seawater intake channel and measuring the depth over a range of 0 to 5m from the nose cone, and sending the corresponding 4-20mA signal through the submersible cable electrical connection.
2 bar absolute range 4 -20 mA output submersible silicon diaphragm liquid level sensor
Low cost stainless steel 316L submersible liquid level sensor with silicon strain gauge technology for measuring over a 2 bar absolute hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
2m range SDI-12 interface submersible lake level sensor for environmental monitoring
A submersible water level sensor for submerging in a lake and measuring the depth over a range of 0 to 2m from the nose cone, and sending the corresponding SDI-12 signal through the submersible cable electrical connection.
10mH2Og borehole monitoring 4-20mA output submersible water level sensor
Borehole monitoring submersible water level sensor with ceramic thick film strain gauge technology for measuring over a 10 mH2O gauge hydrostatic pressure range and sending out a 4 to 20 milliamps signal.
60in range 0-10Vdc output FeCl2 and HCl level sensor for external fitting
An externally mounted chemical liquid level sensor for measuring the height of ferrous chloride & hydrochloric acid over a range of 0 to 60in from the G1 1/2 male process connection, and sending the corresponding 0-10Vdc signal through the weather proof cable electrical connection.
2 to 5 ftH2O g range 1 to 5 volts output submersible freshwater tank level sensor
Submersible freshwater tank level sensor with silicon strain gauge technology for measuring over a 2 to 5 ftH2O gauge hydrostatic pressure range and sending out a 1 to 5 volts signal.
25m borehole submersible pump level indicator and control switch with level sensor
I am hoping to use a borehole where the pump is about 25m below the surface. I would like the pump to operate automatically by switching on when the water has returned to about 14m below ground level and off at about 20m below the ground.
Elevated freshwater tank level 30 psig range 0-5Vdc out pressure sensor
A gauge pressure sensor for water level measuring use, beneath an elevated water tank to measure pressure of freshwater over a range of 0 to 30 psi g from the 1/4 NPT male process connection, and sending the corresponding 0-5Vdc signal through the integral cable electrical connection.