Environment Monitoring Sensors Manufacturer

Water Level Sensor

It adopts imported high-precision diffusion silicon sensitive components, stainless steel casing with all-welded sealing structure, high measurement accuracy, and reliability. It is an excellent solution to level monitoring for indoor and outdoor applications. Below is the water level sensor price.

  • Model: RS-PM200
  • MOQ: 1 PCS
  • Delivery date: within 24 hours
  • Price: $47.8~$83.45

Water level sensor description

The level transmitter working principle is based on the relationship between liquid static pressure and the liquid level (P=ρgH), and the static pressure is converted into an electrical signal to measure the liquid level, which is an important application of the pressure sensor.

PM200 series of input liquid level transmitter front-end protective cap can protect the sensor diaphragm, but also make the liquid-smooth contact with the diaphragm. Waterproof wire and shell seal connection, ventilator in the cable and the outside world, Internal structure anti-condensation design. The built-in micro signal processing circuit can be a remote transmission. Good stability and reliability. It is an industrial water level sensor.



Water level sensor can be widely used in water plants, sewage treatment plants, urban water supply, high building pool, well, geothermal well, mine, industrial pool, oil pool, hydrogeology, reservoir, river, ocean, and other fields.

Water level sensor features

1. reverse polarity protection and instantaneous overcurrent overvoltage protection meet the EMI protection requirements.
2. temperature automatic compensation, temperature automatic correction.
3. use high-quality air-conducting cable, which can be soaked in water all year round.
4. overload and anti-jamming ability, economic and practical stability.
5. the core automatic correction algorithm can effectively prevent the numerical fluctuation caused by water surface fluctuation.
6. slope liquid guide hole can effectively prevent silt impurities from entering, but also prevent impact.


Signal Line Specification: 2wire/3wire
Zero Drift: ±0.02%FS/°C
Thermal Sensitivity Shift: ±0.02%FS/°C
Longterm Stability (1 Year): ±0.1%FS
Frequency Response (-3dB): 3.2kHz
Compensated Temperature: -20~+85°C
Medium Temperature: -10~+85°C
Overload Pressure: 200% FS
Testing Range(m): 0.5 1 2.5 5 10 20 50 100 200 300 400 500 600


More informations about water level sensor

What is a water level sensor?

Liquid level sensor (water level sensor) is a pressure sensor for measuring liquid level. and convert the measured pressure into electrical signal output.

How does the water level sensor work?

The principle of static pressure measurement: when the liquid level transmitter is put into a certain depth of the liquid under test, the pressure formula of the sensor against the liquid level is as follows:Ρ=ρ.g.H Po formula: Pressure on
P: transmitter against liquid level
ρ: measured liquid density
g: local gravity acceleration
Atmospheric pressure on Po: surface
Depth of H: transmitter into liquid
Meanwhile, the pressure of the liquid is introduced into the positive pressure chamber of the sensor through the gas conduction stainless steel, and the atmospheric pressure Po on the liquid level is connected with the negative pressure chamber of the sensor to counteract the Po, on the back of the sensor
The pressure measured by the sensor is ρ.g.H the depth of liquid level can be obtained by measuring the pressure P.

What are the types of water level sensor?

It is divided into two categories: one is contact type, including single flange differential pressure liquid level sensor, float liquid level sensor, magnetic liquid level sensor, input liquid level sensor, electric inner float liquid level sensor, electric float liquid level sensor, electronic water level gauge, magnetostrictive liquid level sensor, servo liquid level sensor, etc. The second category is non-contact, divided into the ultrasonic liquid level sensor, radar liquid level sensor, and so on.

Where to download the water level sensor manual?

Please contact us for manual.

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