Infrared

Infrared

passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.

Operating principles

All objects with a temperature above absolute zero emit heat energy in the form of radiation. Usually this radiation is invisible to the human eye because it radiates at infrared wavelengths, but it can be detected by electronic devices designed for such a purpose.

The term passive in this instance refers to the fact that PIR devices do not generate or radiate any energy for detection purposes. They work entirely by detecting the energy given off by other objects.

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38 khz Universal Infrared Receiver

Description The 1838B is miniaturized infrared receivers for remote control and other applications ..

3.00LE

3D Printer Optical End Stop Switch Module -13%

3D Printer Optical End Stop Switch Module

Description:With high quality 22AWG cable line, the copper wire inside is thick. The cable line..

40.00LE 35.00LE

3DU5C Metal Encapsulated Silicon Phototransistor 0.5-1mA 880nM 10V

Product Features Product Name : NPN Silicon Phototransistor;Mode..

10.00LE

Advanced IR Movement Sensor Array 15 - 30 Days

Advanced IR Movement Sensor Array

This IR compound eye mounted on a pan/tilt assembly can be used by a robot to track movement within ..

250.00LE

Arduino photoelectric Encoder sensor module SOLD OUT

Arduino photoelectric Encoder sensor module

Photoelectric Sensor Infrared Correlation Sensor Module for Arduino/Raspberry-Pi/RoboticsCorrela..

50.00LE

Infrared Remote Control(with batteries)

Description: Have you ever needed a cheap way to activate something from across the room? Infra..

20.00LE

IR Infrared Object Sensor E18-D80NK 3 : 80Cm

IR Infrared Object Sensor E18-D80NK 3-80cm Electrical CharacteristicsWorking vol..

115.00LE

IR Infrared Obstacle Avoidance Sensor

Description : The sensor module light is adaptable to the environment, the working voltage ..

30.00LE

Line Tracking Follower Sensor TCRT5000 x4

Description:1 sensor uses TCRT5000, high sensitivity2 four-sensor, four sensor spacing betwe..

100.00LE

Line Tracking Follower Sensor TCRT5000 x5

Product DescriptionYou can find the TCRT5000 sensor head here, and see its working principle. ..

175.00LE

Line Tracking Sensor TCRT5000 Module

Product DescriptionYou can find the TCRT5000 sensor head here, and see its working principle. ..

30.00LE

MLX90614 Contactless IR Temperature Sensor Module 15 - 30 Days

MLX90614 Contactless IR Temperature Sensor Module

DescriptionMelexis' MLX90614ESF-AAA is an infrared thermometer designed for non-contact temp..

210.00LE

OMRON E3JK-R4M1 IR 4Meter Sensor Pre-Order

OMRON E3JK-R4M1 IR 4Meter Sensor

Sensing method Retro-reflective without M.S.R. function Sensing distance..

260.00LE

Opto coupler U-type H42B6 photo interruptable switch

Opto-coupler is an infrared transmitter and photo transistor reciever and it take U shape to be fit ..

5.00LE