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$76.11

$115.00

Sensorswitch Ceiling Motion Sensor, PDT Passive Dual Technology Passive Infrared PIR And Microphonics Occupancy Sensor, 360° Large Motion Detection,

Amazon.com

Free shipping

折扣 33%

$76.11

$115.00

Sensorswitch Ceiling Motion Sensor, PDT Passive Dual Technology Passive Infrared PIR And Microphonics Occupancy Sensor, 360° Large Motion Detection,

Amazon.com

$35.11

$37.29

Leviton OSFHU-ITW Fixture-Mounted PIR High-Bay Sensor With 3 Interchangeable Lenses, White

Amazon.com

Free shipping

$35.11

$37.29

Leviton OSFHU-ITW Fixture-Mounted PIR High-Bay Sensor With 3 Interchangeable Lenses, White

Amazon.com

$18.99

2 Pack Motion Sensor, 180-Degree Replacement Motion Detector, Adjustable Time & Detection Sensitivity Up To 60 Feet Range, 3 Working Modes Pir Motion

Amazon.com

$18.99

2 Pack Motion Sensor, 180-Degree Replacement Motion Detector, Adjustable Time & Detection Sensitivity Up To 60 Feet Range, 3 Working Modes Pir Motion

Amazon.com

$23.74

Westgate SL-PIR-BZ LED Manufacturing 180 Degree PIR Sensor Work In Dark When Motion Bronze BY BUYRITE ELECTRIC

BuyRite Electric

$23.74

Westgate SL-PIR-BZ LED Manufacturing 180 Degree PIR Sensor Work In Dark When Motion Bronze BY BUYRITE ELECTRIC

BuyRite Electric

$101.97

$203.94

PIR Motion Sensor, Infrared Detector Human Body Movement Alarm, Modes , Welcome Security Remote Control - 1 Pir 1 Remote | Multicon Wholesale Hub

Inspire Uplift

Free shipping

折扣 50%

$101.97

$203.94

PIR Motion Sensor, Infrared Detector Human Body Movement Alarm, Modes , Welcome Security Remote Control - 1 Pir 1 Remote | Multicon Wholesale Hub

Inspire Uplift

Free shipping

$30.99

Motion Sensor Lumaguard PIR | IP65 Waterproof | 85-265V | Adjustable LED Switch & Twilight Sensor | Yeezlab, White

Yeezlab

$30.99

Motion Sensor Lumaguard PIR | IP65 Waterproof | 85-265V | Adjustable LED Switch & Twilight Sensor | Yeezlab, White

Yeezlab

$3.15

$3.20

DC 3.7 To 24V Mini Motion PIR Pyroelectric Infrared Motion Human Sensor Detector Module PIR Sensor

AliExpress

$3.15

$3.20

DC 3.7 To 24V Mini Motion PIR Pyroelectric Infrared Motion Human Sensor Detector Module PIR Sensor

AliExpress

$28.83

White PIR Motion Sensor Bi-Level Passive Infrared Occupancy Sensor With Dimming

Home Depot

Free shipping

$28.83

White PIR Motion Sensor Bi-Level Passive Infrared Occupancy Sensor With Dimming

Home Depot

Free shipping

$6.62

$13.68

Zigbee PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Remote Control Alarm Work

AliExpress

折扣 51%

$6.62

$13.68

Zigbee PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Remote Control Alarm Work

AliExpress

$21.88

12V Motion Sensor 220V/110V PIR Movement Detector Automatic Infrared Wall Mount Timer Outdoor 24V LED Motion Sensor Light Switch Black-12V

LEDLights.io

$21.88

12V Motion Sensor 220V/110V PIR Movement Detector Automatic Infrared Wall Mount Timer Outdoor 24V LED Motion Sensor Light Switch Black-12V

LEDLights.io

$26.99

Maxxima High Bay Fixture Mount 360 Degree PIR Occupancy Sensor, Hard-Wired Motion Sensor, Max Height 30 Ft, Commercial Or Residential 120-277V

MaxximaStyle

$26.99

Maxxima High Bay Fixture Mount 360 Degree PIR Occupancy Sensor, Hard-Wired Motion Sensor, Max Height 30 Ft, Commercial Or Residential 120-277V

MaxximaStyle

$31.00

RAB PIR Sensor (PIR-S)

Lighting Supply

$31.00

RAB PIR Sensor (PIR-S)

Lighting Supply

$1.48

$1.63

110V 220V Mini PIR Sensor Detector Smart Switch LED PIR Infrared Motion Sensor Detection Automatic

AliExpress

$1.48

$1.63

110V 220V Mini PIR Sensor Detector Smart Switch LED PIR Infrared Motion Sensor Detection Automatic

AliExpress

$21.49

NEW Honeywell Resideo Home IS335 Wired PIR Motion Detector, 40' X 56' White. Honeywell. White. Sensors & Motion Detectors. 0638827134358.

eBay

Free shipping

$21.49

NEW Honeywell Resideo Home IS335 Wired PIR Motion Detector, 40' X 56' White. Honeywell. White. Sensors & Motion Detectors. 0638827134358.

eBay

Free shipping

$34.97

Mini PIR Motion Sensor Infrared Detector Security Alarm Works With Alexa Google Home Mini PIR Motion Sensor Infrared Detector Security Alarm Works Wit

Inspire Uplift

$34.97

Mini PIR Motion Sensor Infrared Detector Security Alarm Works With Alexa Google Home Mini PIR Motion Sensor Infrared Detector Security Alarm Works Wit

Inspire Uplift

$32.55

Rab Pir-S Passive Infrared Pir Sensor

Gordon Electric Supply

$32.55

Rab Pir-S Passive Infrared Pir Sensor

Gordon Electric Supply

$643.20

Leviton Osfhs-Itw White Pir Occupancy Sensor High Surf/Flush Mnt

Gordon Electric Supply

$643.20

Leviton Osfhs-Itw White Pir Occupancy Sensor High Surf/Flush Mnt

Gordon Electric Supply

$10.79

Amerteer 180 Degree PIR Induction Motion Sensor Detector Wall LED Light Auto Switch IR Human Infrared Detector Waterproof 12m Home Safety For Outdoor

Walmart

Free shipping

$10.79

Amerteer 180 Degree PIR Induction Motion Sensor Detector Wall LED Light Auto Switch IR Human Infrared Detector Waterproof 12m Home Safety For Outdoor

Walmart

Free shipping

$41.97

$83.94

Zigbee Smart PIR Motion Sensor Infrared Human Body Detector Security Alarm - 1 Sensor 1 Stand | Uplift Essentials

Inspire Uplift

Free shipping

折扣 50%

$41.97

$83.94

Zigbee Smart PIR Motion Sensor Infrared Human Body Detector Security Alarm - 1 Sensor 1 Stand | Uplift Essentials

Inspire Uplift

Free shipping

$28.99

Maxxima Motion Detectors 360 Degree PIR Occupancy Sensor White Hard-Wired Motion LED Compatible Sensor Max Height 15ft 120-277V

Walmart

$28.99

Maxxima Motion Detectors 360 Degree PIR Occupancy Sensor White Hard-Wired Motion LED Compatible Sensor Max Height 15ft 120-277V

Walmart

$123.75

Monnit MNS2-9-W2-MS-IR, ALTA Wireless Infrared Motion Sensor - AA Powered (900Mhz)

Selectum

$123.75

Monnit MNS2-9-W2-MS-IR, ALTA Wireless Infrared Motion Sensor - AA Powered (900Mhz)

Selectum

$26.99

Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor, Hard-Wired Motion Sensor, Max Height 15 Ft, Commercial Or Residential, 120-277V

MaxximaStyle

$26.99

Maxxima Ceiling Mount 360 Degree PIR Occupancy Sensor, Hard-Wired Motion Sensor, Max Height 15 Ft, Commercial Or Residential, 120-277V

MaxximaStyle

$40.84

Dakota Alert PIR-4000, 4000 Series Wireless Passive Infrared Sensor With CR123A Battery - Up To 16 S

Selectum

$40.84

Dakota Alert PIR-4000, 4000 Series Wireless Passive Infrared Sensor With CR123A Battery - Up To 16 S

Selectum

$14.88

12V Motion Sensor 220V/110V PIR Movement Detector Automatic Infrared Wall Mount Timer Outdoor 24V LED Motion Sensor Light Switch NO Adjust

LEDLights.io

$14.88

12V Motion Sensor 220V/110V PIR Movement Detector Automatic Infrared Wall Mount Timer Outdoor 24V LED Motion Sensor Light Switch NO Adjust

LEDLights.io

$30.07

RAB Lighting PIR-S PIR Sensor Mrosupply

MRO Supply MC

Free shipping

$30.07

RAB Lighting PIR-S PIR Sensor Mrosupply

MRO Supply MC

Free shipping

$19.99

PIR Sensor Dual Passive Infrared Motion Detector Hard Wired Request To Exit For Residential Or Commercial Burglar Alarm Systems | Authorizid

Intellid Products

$19.99

PIR Sensor Dual Passive Infrared Motion Detector Hard Wired Request To Exit For Residential Or Commercial Burglar Alarm Systems | Authorizid

Intellid Products

$83.70

Eiko SEN-WSI-PIR-A BLE PIR Motion Sensor, 12-24V,1/2' Button Snap-In, 0-10V, Daylight Harvesting, 8-12Ft, Parameters Set By Silvair App BY BUYRITE

BuyRite Electric

$83.70

Eiko SEN-WSI-PIR-A BLE PIR Motion Sensor, 12-24V,1/2' Button Snap-In, 0-10V, Daylight Harvesting, 8-12Ft, Parameters Set By Silvair App BY BUYRITE

BuyRite Electric

$6.89

Hc-Sr501 PIR IR Passive Infrared Motion Detector Sensor Module For Arduino DIY

Walmart

Free shipping

$6.89

Hc-Sr501 PIR IR Passive Infrared Motion Detector Sensor Module For Arduino DIY

Walmart

$67.99

Honeywell Home IS3050V Wired PIR Motion Detector. Honeywell Home From Resideo. White. Other Home Security. 194160005477.

eBay.com

Free shipping

$67.99

Honeywell Home IS3050V Wired PIR Motion Detector. Honeywell Home From Resideo. White. Other Home Security. 194160005477.

eBay.com

Free shipping

$135.60

Detection DS160 PIR Request To Exit Detector W/Sounder White

E.D. Locks & Security

$135.60

Detection DS160 PIR Request To Exit Detector W/Sounder White

E.D. Locks & Security

$12.83

Wired PIR Motion Sensor - Reliable Passive Infrared Detector For Security

Evalm

$12.83

Wired PIR Motion Sensor - Reliable Passive Infrared Detector For Security

Evalm

$100.28

EIKO SEN-WSI-PIR-A BLE PIR Motion Sensor 12-24V 1/2 Inch Button Snap-In 0-10V Daylight Harvesting 8-12 Foot Parameters Set By Silvair App (15439)

Lighting Supply

$100.28

EIKO SEN-WSI-PIR-A BLE PIR Motion Sensor 12-24V 1/2 Inch Button Snap-In 0-10V Daylight Harvesting 8-12 Foot Parameters Set By Silvair App (15439)

Lighting Supply

$12.99

Wireless Wifi PIR Motion Sensor For Smart Home Security With Tuya App Control

Evalm

$12.99

Wireless Wifi PIR Motion Sensor For Smart Home Security With Tuya App Control

Evalm

$15.74

Westgate UCSENS-PIR Motion Sensor Auto On/Off When Movement MAX 72W, 4" (10CM) Range 120D, -20°C To 40°C Indoors Black Finish BY BUYRITE ELECTRIC

BuyRite Electric

$15.74

Westgate UCSENS-PIR Motion Sensor Auto On/Off When Movement MAX 72W, 4" (10CM) Range 120D, -20°C To 40°C Indoors Black Finish BY BUYRITE ELECTRIC

BuyRite Electric

$28.99

WIFI PIR Motion Sensor For Smart Home Security

Evalm

$28.99

WIFI PIR Motion Sensor For Smart Home Security

Evalm

$11.04

Panasonic Electric Works EKMC7606112K SENSOR MOTION PIR LONG DIST BLK

DigiKey

$11.04

Panasonic Electric Works EKMC7606112K SENSOR MOTION PIR LONG DIST BLK

DigiKey

instructables.com

How PIR Sensor Work

How PIR Sensor Work: PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in applianc…

4 个月之前

PIR Sensor Projects