PIR Sensors

PIR (passive infrared) sensors measure 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. They are often used in PIR-based motion detectors. PIR sensors 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.

Where are PIR sensors used?

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.

How are PIR sensors installed?

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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Beskrivning Pris Detector Type Sensor Radius Diameter Depth Width Height Series Tamper Resistant Additional Features
RS-artikelnummer 719-1879
VarumärkeRS PRO
976,45 kr
Each
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- - - - - - - - -
RS-artikelnummer 524-4930
Tillv. art.nrBW8000
VarumärkeABUS
199,77 kr
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PIR Motion Detector 15m - 47 mm 60mm 106 mm XEVOX Yes HF Immunity, Look-Down Lens Protection
RS-artikelnummer 327-7310
Tillv. art.nrAMN11111
VarumärkePanasonic
225,41 kr
Each
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PIR Motion Detector 5m 11mm - - 14.5 mm NaPiOn - -
RS-artikelnummer 327-7326
Tillv. art.nrAMN11112
VarumärkePanasonic
257,36 kr
Each
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PIR Motion Detector 5m 11mm - - 14.5 mm NaPiOn - -
RS-artikelnummer 519-400
Tillv. art.nrLS1020
VarumärkeABUS
409,67 kr
Pr. Set
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IR Detector 20m - 34 mm 46mm 95 mm Ecoline Yes -
RS-artikelnummer 524-5107
Tillv. art.nrBW8070
VarumärkeABUS
500,87 kr
Each
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PIR Motion Detector 12m - 48 mm 60mm 107 mm XEVOX Yes Creep Zone, Pet Immunity
RS-artikelnummer 740-4434
Tillv. art.nr6800-0-2518
VarumärkeABB
765,89 kr
Each
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PIR Motion Detector 7m - 111 mm 111mm 59 mm BasicLine - Brightness Movement Dependent Output, Detect 2.5 m Height, Indoor Use
RS-artikelnummer 524-5090
Tillv. art.nrBW8080
VarumärkeABUS
841,47 kr
Each
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PIR Motion/Microwave Detector 12m - 48 mm 60mm 107 mm XEVOX Yes Creep Zone, Pet Immunity
RS-artikelnummer 327-7348
Tillv. art.nrAMN12112
VarumärkePanasonic
200,29 kr
Each
Enheter
PIR Motion Detector 2m 12.7mm - - 15.2 mm NaPiOn - -
RS-artikelnummer 524-5040
Tillv. art.nrFU7300W
VarumärkeABUS
172,68 kr
Each
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Glass Break Detector 2m - 9 mm 18mm 18 mm Ecoline - -
RS-artikelnummer 883-7853
Tillv. art.nrMDU1750CM-C920809
110,95 kr
Each
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Motion Detector - - 46 mm 37.75mm 13.1 mm MDU17 - +3.6 V to +5 V Versions Available, High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile, Supervision Capability
RS-artikelnummer 370-8381
Tillv. art.nrAMN13112
VarumärkePanasonic
204,73 kr
Each
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PIR Motion Detector 5m 8.9mm - - 15.1 mm NaPiOn - -
RS-artikelnummer 524-5113
Tillv. art.nrBW8040
VarumärkeABUS
1 031,42 kr
Each
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PIR Motion/Microwave Detector 15m - 48 mm 60mm 107 mm XEVOX Yes White Light Immunity
RS-artikelnummer 883-7831
Tillv. art.nrMDU1100T-C900861
232,65 kr
Each
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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
RS-artikelnummer 352-5007
Tillv. art.nrAMN14112
VarumärkePanasonic
212,49 kr
Each
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PIR Motion Detector 10m 17mm - - 18.5 mm NaPiOn - -
RS-artikelnummer 883-7866
Tillv. art.nrMDU2000-C930801
108,67 kr
Each
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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
RS-artikelnummer 721-4938
Tillv. art.nrPPGI0601
VarumärkeMurata
32,36 kr
Each
Enheter
IR Detector - 21mm - - 6.4 mm - - -
RS-artikelnummer 883-7850
Tillv. art.nrMDU1750-C920802
110,95 kr
Each
Enheter
Motion Detector - - 46 mm 37.75mm 13.1 mm MDU17 - +3.6 V to +5 V Versions Available, High Sensitivity, Low Cost, Low Power Consumption, Patch Antenna, RoHS Compliant, Small and Flat Profile, Supervision Capability
RS-artikelnummer 883-7844
Tillv. art.nrMDU2750-C920101
121,50 kr
Each
Enheter
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
RS-artikelnummer 647-8819
Tillv. art.nrBW8085
VarumärkeABUS
500,87 kr
Each
Enheter
PIR Motion Detector 13m 135mm - - 27 mm XEVOX Yes -
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