What is the lifespan of various water related sensors?

Water quality sensors are usually composed of various measuring electrodes and chemical sensing elements, with a lifespan of about 1-3 years, depending on the quality, usage conditions, and frequency of use of the sensor.

There are various types of environmental sensors, which can be classified into electrochemical and optical categories based on their principles.

Electrochemical sensors include pH sensors, OPR sensors, membrane dissolved oxygen sensors, ammonia nitrogen sensors, chloride ion sensors, etc; The lifespan of such sensors is generally around six months to one year, depending on the manufacturers quality.

Optical sensors include turbidity sensors, fluorescence dissolved oxygen sensors, nitrate sensors, COD sensors, BOD sensors, water oil sensors, etc; The lifespan of such sensors is generally around one to three years, depending on the manufacturers quality.

Liquid level sensor

The service life of liquid level sensors is mainly determined by their monitoring principles and water quality. Current liquid level sensors include electrode type, photoelectric type, pressure type, and ultrasonic type.

The principle of electrode type liquid level sensor is that water is a conductor, and when there is water, the two electrodes conduct electricity, and the AC contactor is closed. The lifespan of this type of sensor is very short, requiring cleaning within 2-3 months, and the lifespan ranges from six months to one year, depending on the manufacturers quality.

The photoelectric liquid level sensor adopts the principle of light reflection, and the service life of such sensors can generally exceed three years, depending on the quality of the manufacturer.

Pressure sensors, which use liquid pressure to detect liquid level, are easily blocked by sediment due to their small permeable aperture. Generally speaking, their lifespan does not exceed one year.

Ultrasonic sensors use the time difference between the emission and reception of sound waves to detect liquid levels. Generally, water vapor and mist can affect the accuracy of liquid level detection. Generally speaking, the lifespan is three to five years, depending on the manufacturers quality.