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5mm IR Transmitter Receiver Pair

5mm IR Transmitter Receiver Pair

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  • This is the IR Transmitter and Receiver pair matched pair used in our IR proximity, White Line or Micro-mouse sensor.
  • It consists of 5 mm 940 nano-meter wave length high power IR LED.
  • Photo-diode having peak sensitivity at 940 nano-meter wavelength.

5mm IR Transmitter Receiver Pair

This pair of High-power directional IR LED and Filtered photodiode can be used in various kinds of sensing circuits. The narrow beamwidth IR LED emits focused IR light and the filtered photodiode filters out ambient light without the need for any external circuit. When used with a proper circuit it can give up to 200 mm of reflective sensing and can also be used in high-speed applications like encoders.

The IR Transmitter Receiver has a peak wavelength of 940nm. IR sensors are also used in IR imaging devices, optical power meters, sorting devices, missile guidance, remote sensing, flame monitors, moisture analyzers, night vision devices, infrared astronomy, rail safety, etc.


  • IP cameras
  • Gas Analyzers
  • Alarm systems and other crime prevention devices
  • Battery-driven human presence sensors for IoT smart homes

Read our blog explaining the IR sensor working where we explained the types of IR Sensors, how an IR sensor works with example, and applications of IR Sensors.

Package Includes:

  • 1 x 5mm IR Transmitter Receiver Pair


IR TX RX size 5 mm diameter
IR LED current rating 30mA nominal, 600mA pulse loading at 1% duty cycle
IR LED wavelength 940nM
Dimensions  3 x 1 x 1 cms
Weight  5 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. What is an IR Sensor and why is it not visible?

  • An infrared (IR) sensor is an electronic device that measures and detects infrared radiation in its surrounding environment. Infrared radiation was accidentally discovered by an astronomer named William Herchel in 1800. While measuring the temperature of each color of light (separated by a prism), he noticed that the temperature just beyond the red light was highest. IR is invisible to the human eye, as its wavelength is longer than that of visible light. Anything that emits heat gives off infrared radiation

2. What are the types of IR sensor and their difference?

  • There are two types of infrared sensors: active and passive.
    • Active infrared sensors both emit and detect infrared radiation.
    • Passive infrared (PIR) sensors only detect infrared radiation and do not emit.