PIR Sensors

PIR sensors (passive infrared sensors) work with infrared technology and react to temperature changes in their surroundings. Any object that radiates heat - including people, animals or even vehicles - emits infrared radiation. The PIR sensor detects this radiation and registers when a heat source moves.
This happens in several steps: 

1. Detection of infrared radiation: the sensor element detects the infrared heat from the surroundings. 
2. Analysis of movement: As soon as a heat source changes its location, the sensor detects a difference in the infrared image. 
3. Activation of the light or another action: The sensor then triggers the switching process and the light switches on. Alternatively, a camera can be activated or an alarm triggered. 
4. Automatic switch-off: If there is no more movement, the light switches off again automatically after the set delay time.

Motion is detected using special lenses that split the infrared image of the surroundings into different viewing angles. High-quality PIR sensors enable precise detection thanks to customizable sensitivity levels and different mounting heights. Some models even support smart home protocols such as ZigBee to communicate with other devices.

One advantage of this technology is that PIR sensors work passively - this means that they do not emit any radiation themselves, but only react to existing heat sources. This makes them particularly energy-efficient and reliable. In addition, many models can be set so that they only react to larger heat sources in order to avoid false alarms from small animals.

Areas of application for PIR sensors

There are many possible applications for this type of motion detector: 

• Private homes - hallways, stairwells, basements and entrance areas benefit from automatic lighting. 
• Offices & commercial - PIR sensors optimize lighting control in meeting rooms, washrooms and corridors. 
• Industry & warehouses - Large areas are efficiently illuminated without unnecessary power consumption. 
• Parking lots & underground garages - Increased safety and better orientation thanks to intelligent lighting control. 
• Public buildings & schools - PIR sensors help to save energy by activating light only when needed. 
• Security areas - PIR sensors can be used to trigger alarms in surveillance systems and warn of intruders. 

Adjustable sensitivity for precise detection

Most PIR sensors offer different sensitivity levels that allow you to customize the detection sensitivity: 

• High sensitivity - Reacts to even small movements, ideal for indoor spaces with a short distance to the sensor. 
• Medium sensitivity - A balanced setting for offices, corridors and general lighting solutions. 
• Low sensitivity - Prevents false alarms from small animals or distant heat sources, ideal for outdoor areas. By setting the sensitivity correctly, you can ensure that the light is only switched on when it is really necessary. In addition, the detection varies depending on the detection area, field of view and wavelength of the sensor.

The advantages of PIR sensors

• Save energy - light is only switched on when there is movement. Increase convenience - no manual switching required. 
• Increase security - dark areas are automatically illuminated. 
• Flexible use - Suitable for indoor and outdoor areas. 
• Smart functions - Integration with ZigBee, cameras or alarm systems possible. 
• Customizable - Different sensitivity levels for optimal use.

Which PIR motion sensor is right for you?

Depending on the area of application, there are various models with different detection angles, ranges and setting options.
In our range, you will find high-quality PIR sensors for every application - from standard models to smart variants with adjustable light sensitivity, detection sensitivity and delay time. The power supply also varies: In addition to wired sensors, there are battery-operated variants that allow flexible installation.