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What Is Ir Sensor - China

price: 25.00 Dollar US$

An infrared (IR) sensor is an electronic device that measures and detects infrared radiation in its surrounding environment.

IR is invisible to the human eye, as its wavelength is longer than that of visible light (though it is still on the same electromagnetic spectrum).

Anything that emits heat gives off infrared radiation.

There are two types of infrared sensors: active and passive.

Active infrared sensors both emit and detect infrared radiation.

Active IR sensors have two parts: a light emitting diode (LED) and a receiver.

When an object comes close to the sensor, the infrared light from the LED reflects off of the object and is detected by the receiver.

Active IR sensors act as proximity sensors, and they are commonly used in obstacle detection systems.

U-SENSOR’s active infrared sensor can be used for door opening and safety.

It activates the automatic door and protect pedestrian when there is object in the detection range.


Company Contact:


  • Phone: 15659820978

  • Address: wansheng street luojiang, Quanzhou , fujian , China

  • Email: Email


Published date: February 2, 2021

  • Business Description: QINUO Electronics Co., Ltd is a leading automatic doors systems manufacturer in China, offer a diverse range of automatic door sensor, RF remote control, gate control board, transmitter&receiver, etc.

    With 10-year effort, we have expanded our market to Europe, North America, Southeast Asia and Middle East and enjoy good reputation among our customers.

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