IR Proximity Motion Sensors

IR proximity sensors are pretty cool technology. They use infrared radiation to detect objects within a certain range, kind of like how bats use echolocation to navigate. It's made up of two parts: an IR LED which sends out the infrared signals, and an IR photodetector which receives the signals.

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An IR (Infrared) sensor module is a device that detects infrared radiation (IR) and converts it into an electrical signal. IR sensors are used in a wide range of applications, including remote controls, motion detectors, and obstacle avoidance sensors in robots.

An IR sensor module typically consists of an IR detector and a preamplifier circuit. The IR detector, typically a photodiode or a thermopile, detects the IR radiation and generates a small electrical current. The preamplifier circuit amplifies this current and converts it into a voltage or digital signal that can be read by a microcontroller or other electronic device.

IR sensor modules can detect IR radiation in a specific range of wavelengths, depending on the type of detector used. They can also be configured to detect a specific range of distances, depending on the field of view of the sensors

Buy a motion sensor that senses movement and triggers an action accordingly. To help you build a sensitive project, we have stacked all kinds of motion sensors and detectors - outdoor and indoor motion sensors, kangaroo motion sensors, and motion sensor alarms.


How much do Motion sensors cost?

Motion Sensors


HC-SR505 Mini PIR (Passive Infrared) Motion Sensor


TCRT5000 IR Sensor Module


HCSR501 PIR Motion Sensor


3mm IR Pair


4-CH IR Line sensor Module


TSOP Module


IR Proximity Sensor


TCRT5000 IR Sensor (Pack of 5)


TSOP 1738


5mm IR Transmitter Receiver Pair


TSOP 1838B small


IR Remote


At Robocraze, we understand the importance of having accurate sensors and IR proximity motion sensors. That is why we carefully design our products with quality and performance in mind and offer the most accurate and long-lasting results.

Whether you're a professional or a DIY enthusiast, you'll appreciate our wide collection of sensors designed for a wide range of applications. From improving home security to enabling complicated automation projects, our sensors provide the innovation you need to make your ideas a reality.

Explore our sensor modules today to see what makes Robocraze special. 


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1.What are the types of motion proximity sensors?

  • Passive Infrared (PIR)
    • PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensor's range. They are small, inexpensive, low-power, easy to use and don't wear out. 
  • Microwave
    • A microwave motion sensor uses electro-magnetic radiation. It emits waves which are then reflected back to the receiver. 
  • Dual technology motion sensors
    • Dual Technology sensors are smart solutions that can help reduce energy waste and provide an additional level of convenience for occupants. They work using a combination of PIR and Ultrasonic technology. 

2.Where can these proximity motion sensors be used?

  • Motion sensors are very useful and highly recommended when it comes to security and energy efficiency. They can be used for anti-theft alarms and security cameras, activating these devices when it senses motion in the vicinity. It can be an energy saver by shutting off lights in a building when it senses no motion anymore, which is used regularly in office buildings or restrooms. 

3.How is motion detected using PIR sensors?

  • A PIR sensor detects the infrared light radiated by a warm object. It consists of pyro electric sensors which introduce changes in their temperature (due to incident infrared radiation) into electric signals. When infrared light strikes a crystal, it generates an electrical charge.

4.Do motion sensors have cameras?

  • Video motion sensors combine video cameras with advanced signal processing. Some recordable motion sensors start recording when they sense motion. Cameras controlled by motion sensors can save you memory storage.

5.What is the ideal placement for motion sensors?

  • Placing the motion sensors in the correct position and location is an important aspect. They work best when placed high up to cover a large amount of area. They also function by detecting a fluctuation in heat and therefore it is not ideal to place it near a heating station or windows on a sunny day.  It is not ideal to place it near a door or window, since it can create false alarms if there are slight alterations in infrared energy over time.