PIR Sensors

PIR (passive infrared) sensors measures infrared (IR) light radiating from moving objects that emit heat. The sensor allows you to detect motion of people, animals and cars to trigger security alarms and lighting, and often used in PIR-based motion detectors. They are passive due to the fact that no heat or energy is emitted by the sensor and they detect the emission of infrared radiation and not heat.
These sensors are used to detect movement and are ideal for security and safety such as burglar alarms and security lighting systems. They can also be called PID passive infrared detectors (PID). They can be used internally & externally and can be mounted to ceilings & walls. PIR sensors have various ranges and styles including pet friendly options (designed to ignore certain shapes of moving objects, or only detect motion above a certain height).
PIR sensors are used for applications such as automatically turning on lights when a person enters a room or causing a video camera to start recording.
How does a PIR sensor work?
All objects emit some level of radiation (not visible to the human eye) and the hotter something is, the more radiation is emitted. The sensor detects levels of infrared radiation impinging upon it which varies depending on the temperature of the objects in front of the sensor. When a warm object (person or animal) walks in front, the temperature in the sensor’s field of view will increase from room to body temperature. The sensor converts this change in the incoming infrared radiation into a change in the output voltage and this triggers the detection.
Where to install them?
They are quick and easy to fit using the screws and plugs that are supplied to mount an adjustable bracket onto the wall or ceiling. They come in varying ranges, once you know the range of the sensor and how far it can detect you can therefore plan your security coverage. Areas recommended include corners, hallways, patios, driveways, front and back entries. Ideal position being 2 to 3 metres above the ground.
Motion sensors are also used in the work place for example to shut down equipment that could be dangerous if the worker gets too close.
These sensors should not be installed:
• Directly above a radiator (change in infrared heat could trigger the alarm)
• Directly looking into a window (sunlight can cause confusion for the sensor)
• In rooms where a number of animals are present
• Near air vents (temperature change might trigger the alarm)
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Part Details Brand Detector Type Sensor Radius Diameter Depth Width Height Series Additional Features
Pyroelectric Sensor Freznel lens Murata IR Detector - 21mm - - 6.4 mm - -
Infresco PIR Movement Sensor A86616 United Automation - - - - - - - -
SENSOR, PIR, COMPACT, 2M, White Panasonic PIR Motion Detector 2m 12.7mm - - 15.2 mm NaPiOn -
SENSOR, PIR, COMPACT, LONG, 10M, WHITE Panasonic PIR Motion Detector 10m 17mm - - 18.5 mm NaPiOn -
SENSOR, PIR, COMPACT, STD, 5M, BLACK Panasonic PIR Motion Detector 5m 11mm - - 14.5 mm NaPiOn -
XEVOX MOTION DETECTOR ABUS PIR Motion Detector 15m - 47 mm 60mm 106 mm XEVOX HF Immunity, Look-Down Lens Protection
SENSOR, PIR, COMPACT, STD, 5M, WHITE Panasonic PIR Motion Detector 5m 11mm - - 14.5 mm NaPiOn -
Ecoline active IR 20m ABUS IR Detector 20m - 34 mm 46mm 95 mm Ecoline -
Microwave Solutions Microwave Doppler Sensor Module 10.587 GHz Microwave Solutions Motion Detector - - 27 mm 17.6mm 8.24 mm MDU20 High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile
Microwave Solutions Microwave Doppler Sensor Module 10.525 GHz Microwave Solutions Motion Detector - - 27 mm 17.6mm 8.24 mm MDU20 High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile
PIR detector PresenceTech BasicLine
  • RS Stock No. 740-4434
  • Brand ABB
  • Mfr. Part No. 6800-0-2518
ABB PIR Motion Detector 7m - 111 mm 111mm 59 mm BasicLine Brightness Movement Dependent Output, Detect 2.5 m Height, Indoor Use
Microwave Solutions Microwave Doppler Sensor Module 10.587 GHz Microwave Solutions Motion Detector - - 46 mm 37.75mm 9.8 mm MDU27 High Sensitivity, High Stability, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile
Motion detector XEVOX 360 ABUS PIR Motion Detector 13m 135mm - - 27 mm XEVOX -
XEVOX Profi Vds PIR Motion Detector ABUS PIR Motion Detector 15m - 48 mm 60mm 107 mm XEVOX White Light Immunity
Microwave Solutions Microwave Doppler Sensor Module 10.587 GHz Microwave Solutions Motion Detector - - 49 mm 51.4mm 13.1 mm MDU11 Electronically Tuneable, High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile
Microwave Solutions Microwave Doppler Sensor Module 24.1 GHz Microwave Solutions Motion Detector - - 29.2 mm 36.73mm 8.75 mm MDU24 High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile, Wall and Ceiling Mount
PIR detector PresenceTech BasicLine mini
  • RS Stock No. 740-4443
  • Brand ABB
  • Mfr. Part No. 6800-0-2517
ABB PIR Motion Detector 6m - - - - BasicLine Mini Brightness Independent Test Mode, Detect 3 m Height, For Switching Lighting System
PIR detector PresenceTech BasicL corridr
  • RS Stock No. 740-4446
  • Brand ABB
  • Mfr. Part No. 6800-0-2519
ABB PIR Motion Detector 24m - 110 mm 110mm 70 mm BasicLine Corridor Brightness Independent Test Mode, Detect 2.5 m Height, For Switching Lighting System
XEVOX MOTION DETECTOR DUPLEX ABUS PIR Motion/Microwave Detector 15m - 48 mm 60mm 107 mm XEVOX White Light Immunity
XEVOX Pet PIR Motion Detector ABUS PIR Motion Detector 12m - 48 mm 60mm 107 mm XEVOX Creep Zone, Pet Immunity
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