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    • eBay
      • Electronics
      • Surveillance & Smart Home Electronics
    • Electronics
    • Surveillance & Smart Home Electronics
    • Home Surveillance
    • Sensors & Motion Detectors

    Home Sensors & Motion Detectors

    Side Refine Panel

    Shop by Category

    • Home Surveillance
    • Sensors & Motion Detectors
    • Security Cameras
    • IP & Smart Security Camera Systems
    • CCTV Systems
    • Dummy Cameras
    • Home Surveillance Parts & Accessories

    Best Selling

    • Honeywell 5800PIRRES Wireless LED Motion Sensor
      Honeywell 5800PIRRES Wireless LED Motion Sensor
      (68)Total Ratings 68
      $34.00 New
      $19.99 Used
    • Ring 4SP1SZ-0EN0 Motion Detector Alarm - White
      Ring 4SP1SZ-0EN0 Motion Detector Alarm - White
      (26)Total Ratings 26
      $24.99 New
      $20.00 Used
    • Eufy T89000D4 Wireless Entry Sensor - White
      Eufy T89000D4 Wireless Entry Sensor - White
      $25.99 New
      $19.90 Used
    • WattStopper LMRC-101 Digital Single Relay Controller
      WattStopper LMRC-101 Digital Single Relay Controller
      (2)Total Ratings 2
      $67.99 New
      $48.00 Used
    • DSC PG9914 Motion Detector​ - White
      DSC PG9914 Motion Detector​ - White
      $47.86 New
    • U.S. Patrol Driveway Patrol Garage Motion Sensor Security System - White
      U.S. Patrol Driveway Patrol Garage Motion Sensor Security System - White
      (525)Total Ratings 525
      $16.29 New
    • DSC Neo Powerg 915mhz Vanishing Wireless Window Door Contact PG9975
      DSC Neo Powerg 915mhz Vanishing Wireless Window Door Contact PG9975
      (5)Total Ratings 5
      $20.00 New
    • Occupancy Motion Sensor Passive Infrared High Bay Fixture Mount 360 Degree
      Occupancy Motion Sensor Passive Infrared High Bay Fixture Mount 360 Degree
      (3)Total Ratings 3
      $13.99 New
    • All

    • Auction

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    • Time: ending soonest
    • Time: newly listed
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    • Gallery View

    30,001 Results

      • Unbranded
      • SimpliSafe
      • Honeywell
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      • Sensor Switch
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      • All Listings filter applied
    • Wireless Driveway Alarm Infrared Motion Sensor Home Garage Alert Security System

      Wireless Driveway Alarm Infrared Motion Sensor Home Garage Alert Security System

      $15.89
    • 1 Pack Motion Sensor Switch, PIR Sensor Light Switch, No Neutral Wire Required

      1 Pack Motion Sensor Switch, PIR Sensor Light Switch, No Neutral Wire Required

      $9.99
      Free shipping
    • SimpliSafe ES3 Entry Door Window Sensor Magnetic White Gen 3 NEW IN BOX Lot Of 3

      SimpliSafe ES3 Entry Door Window Sensor Magnetic White Gen 3 NEW IN BOX Lot Of 3

      $28.00
      13 sold
    • 180° LED Infrared PIR Motion Sensor Detector Outdoor Wall Light Switch 85-265V

      180° LED Infrared PIR Motion Sensor Detector Outdoor Wall Light Switch 85-265V

      $5.99
      $0.99 shipping
      or Best Offer
      133 sold
    • HTZSAFE WIRELESS DRIVEWAY ALARM 1/2 MILE LONG RANGE MAILBOX CHIME WELCOME CHIME

      HTZSAFE WIRELESS DRIVEWAY ALARM 1/2 MILE LONG RANGE MAILBOX CHIME WELCOME CHIME

      (3)3 product ratings - HTZSAFE WIRELESS DRIVEWAY ALARM 1/2 MILE LONG RANGE MAILBOX CHIME WELCOME CHIME
      $28.79 to $66.39
      Was: $35.99
      Free shipping
    • Home Security Wireless Outdoor Driveway Alarm Doorbell 2 Motion Sensor Detector

      Home Security Wireless Outdoor Driveway Alarm Doorbell 2 Motion Sensor Detector

      [OFFICIAL STORE][Fast Ship][Business & Home Compatible]
      (63)63 product ratings - Home Security Wireless Outdoor Driveway Alarm Doorbell 2 Motion Sensor Detector
      $26.99
      Was: $34.99
      Free shipping
      2,616 sold
    • SimpliSafe ENS306 6 Pack Entry Sensor White

      SimpliSafe ENS306 6 Pack Entry Sensor White

      $50.00
      Was: $69.88
      135 sold
    • Brand New Ring Security Base Station with built in siren - 2nd gen

      Brand New Ring Security Base Station with built in siren - 2nd gen

      $55.00
      or Best Offer
    • LOT Wireless Motion Sensor Home Security Doorbell Driveway Alarm System M5M1

      LOT Wireless Motion Sensor Home Security Doorbell Driveway Alarm System M5M1

      $20.93 to $38.93
      Free shipping
    • 110V Motion Sensor Infrared PIR Movement Detector Outdoor Sensor Light Switch

      110V Motion Sensor Infrared PIR Movement Detector Outdoor Sensor Light Switch

      $6.99
      or Best Offer
      172 sold
    • PIR Infrared Motion Sensor Detector Smart Switch AC 110V Light Lamp Switch Auto

      PIR Infrared Motion Sensor Detector Smart Switch AC 110V Light Lamp Switch Auto

      $6.88
      Free shipping
    • Westek MLC12BC  Indoor Plug-in Corded Motion Activated Light Control

      Westek MLC12BC Indoor Plug-in Corded Motion Activated Light Control

      $18.95 to $29.95
    • Human Sensor 2A For Home Assistant By SCREEK (wifi,24G mmWave,LD2450,esp32c3)

      Human Sensor 2A For Home Assistant By SCREEK (wifi,24G mmWave,LD2450,esp32c3)

      $29.99
      $4.50 shipping
      or Best Offer
    • 1800 feet Range Driveway Alarm Wireless System Motion Sensor Home Yard Security

      1800 feet Range Driveway Alarm Wireless System Motion Sensor Home Yard Security

      $38.63 to $151.71
      Was: $159.90
      Free shipping
      SPONSORED
    • Htzsafe 1/2Mile Solar wireless Driveway Alarm Weatherproof Outdoor Motion Sensor

      Htzsafe 1/2Mile Solar wireless Driveway Alarm Weatherproof Outdoor Motion Sensor

      $47.99
      Was: $59.99
      Free shipping
      or Best Offer
      SPONSORED
    • 2* Solar Driveway Alarm 1/2 Mile Long Range Wireless Motion Sensor Detector IP66

      2* Solar Driveway Alarm 1/2 Mile Long Range Wireless Motion Sensor Detector IP66

      $66.99
      Was: $91.87
      Free shipping
      or Best Offer
      SPONSORED
    • Ring Alarm Home Security Wireless System 5 Piece Security Kit (4K11S70EN0)

      Ring Alarm Home Security Wireless System 5 Piece Security Kit (4K11S70EN0)

      (137)137 product ratings - Ring Alarm Home Security Wireless System 5 Piece Security Kit (4K11S70EN0)
      $49.99
      Benefits charity
    • Solar Alarm LED Light Solar Strobe Light Wireless Motion Sensor Detector Outdoor

      Solar Alarm LED Light Solar Strobe Light Wireless Motion Sensor Detector Outdoor

      $10.99
      Was: $12.21
      or Best Offer
    • Ring Contact Sensors (2nd Gen) 2 Pack

      Ring Contact Sensors (2nd Gen) 2 Pack

      $15.99
      $14.90 shipping
      133 sold
    • 2 PCS Outdoor LED Security PIR Infrared Motion Sensor Detector Switch Wall Light

      2 PCS Outdoor LED Security PIR Infrared Motion Sensor Detector Switch Wall Light

      $11.98 to $13.48
      Was: $17.98
    • Ring Alarm Contact Sensor - Door, Window - 2nd Gen - New Authentic (3-pack)

      Ring Alarm Contact Sensor - Door, Window - 2nd Gen - New Authentic (3-pack)

      $44.95
      186 sold
    • LOT OF 10 DOOR WINDOW SENSOR 2.4 GHz XFINITY XHS2-UE COMCAST/ZIGBEE HOME SECURIT

      LOT OF 10 DOOR WINDOW SENSOR 2.4 GHz XFINITY XHS2-UE COMCAST/ZIGBEE HOME SECURIT

      $39.95
      Free shipping
    • Ring Alarm Smoke & CO Listener - White - New Sealed

      Ring Alarm Smoke & CO Listener - White - New Sealed

      $21.95
      85 sold
    • 2PCS Outdoor LED Security PIR Infrared Motion Sensor Detector Switch Wall Light

      2PCS Outdoor LED Security PIR Infrared Motion Sensor Detector Switch Wall Light

      $12.98
      131 sold
    • Westek MLC12BC  Indoor Plug-in Corded Motion Activated Light Control

      Westek MLC12BC Indoor Plug-in Corded Motion Activated Light Control

      (28)28 product ratings - Westek MLC12BC Indoor Plug-in Corded Motion Activated Light Control
      $19.95
      or Best Offer
    • The Watchdog Basement Water Alarm BWD-HWA Find Water Leaks Fast! New

      The Watchdog Basement Water Alarm BWD-HWA Find Water Leaks Fast! New

      (42)42 product ratings - The Watchdog Basement Water Alarm BWD-HWA Find Water Leaks Fast! New
      $13.99
    • Hidden Camera Detector Antispy Bug GPS Tracker Finder Scanner Device Hotel Car

      Hidden Camera Detector Antispy Bug GPS Tracker Finder Scanner Device Hotel Car

      $25.99
      Free shipping
      or Best Offer
      Only 2 left
    • Wireless Driveway Alarm Outdoor Motion Sensor Outdoor Home Security Alarm R6J1

      Wireless Driveway Alarm Outdoor Motion Sensor Outdoor Home Security Alarm R6J1

      $18.99
      Was: $22.96
      Free shipping
      or Best Offer
    • Htzsafe 1/2Mile Solar Wireless Driveway Alarm System 1 Receiver + 3 Sensors

      Htzsafe 1/2Mile Solar Wireless Driveway Alarm System 1 Receiver + 3 Sensors

      $95.99
      Was: $119.99
      Free shipping
      or Best Offer
      SPONSORED
    • Home Security  Alarm 800 Meters Long Range Wireless 1 Receiver+3 Sensors

      Home Security Alarm 800 Meters Long Range Wireless 1 Receiver+3 Sensors

      $52.79
      Was: $65.99
      Free shipping
      or Best Offer
      SPONSORED
    • Driveway Alarm mailbox alert mailbox alarm welcome chime 1 receiver + 2 sensors

      Driveway Alarm mailbox alert mailbox alarm welcome chime 1 receiver + 2 sensors

      $42.39
      Was: $52.99
      Free shipping
      or Best Offer
      SPONSORED
    • Vivint Smart Flood Sensor Water VS-FLD001-345   Sealed Boxes! Brand New!

      Vivint Smart Flood Sensor Water VS-FLD001-345 Sealed Boxes! Brand New!

      $21.99
      Free shipping
      or Best Offer
      SPONSORED
    • Ring Alarm Smoke & CO Listener - White - NEW AUTHENTIC - Pack of 2

      Ring Alarm Smoke & CO Listener - White - NEW AUTHENTIC - Pack of 2

      $41.95
      90 sold
    • Ring Alarm Glass Break Sensor BRAND NEW FACTORY SEALED

      Ring Alarm Glass Break Sensor BRAND NEW FACTORY SEALED

      (1)1 product ratings - Ring Alarm Glass Break Sensor BRAND NEW FACTORY SEALED
      $32.00
      Trending at $33.90eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.
      Free shipping
      2 watching
    • 5x PIR Infrared Motion Sensor Detector 110V Smart Switch Light Lamp Switch Auto

      5x PIR Infrared Motion Sensor Detector 110V Smart Switch Light Lamp Switch Auto

      $14.95
    • wyze home monitoring bundle

      wyze home monitoring bundle

      $15.50
      3 bids
      $8.00 shipping
      Ending Wednesday at 10:51AM PDT12h 19m
    • Barking Dog Alarm EWD-1 Build System From Pick List (PLEASE READ DESCRIPTION)

      Barking Dog Alarm EWD-1 Build System From Pick List (PLEASE READ DESCRIPTION)

      (6)6 product ratings - Barking Dog Alarm EWD-1 Build System From Pick List (PLEASE READ DESCRIPTION)
      $22.95 to $86.95
      135 sold
    • Moen Smart Leak Detector 1-Pack Works With Alexa Alerts At First Leak 3596OB

      Moen Smart Leak Detector 1-Pack Works With Alexa Alerts At First Leak 3596OB

      (5)5 product ratings - Moen Smart Leak Detector 1-Pack Works With Alexa Alerts At First Leak 3596OB
      $24.00
    • Wuloo 1800ft Wireless Long Range Driveway Alarms Motion Detectors & Sensors Camo

      Wuloo 1800ft Wireless Long Range Driveway Alarms Motion Detectors & Sensors Camo

      $40.84 to $156.74
      Was: $134.99
      Free shipping
      SPONSORED
    • Wireless Door bell Motion Sensor Home Security Door open alarm Entry Chime

      Wireless Door bell Motion Sensor Home Security Door open alarm Entry Chime

      $18.99
      SPONSORED
    • NEW SimpliSafe Water Sensor White

      NEW SimpliSafe Water Sensor White

      $18.79
      47 sold
    • XFINITY Security 2.4 GHZ Wireless Digital Pet Immune PIR Motion Detector Mp-841

      XFINITY Security 2.4 GHZ Wireless Digital Pet Immune PIR Motion Detector Mp-841

      $12.86
    • Wyze Sense Motion Sensor V2 - Good Condition

      Wyze Sense Motion Sensor V2 - Good Condition

      Free Shipping ✔️ Returns ✔️ 1 Year Warranty ✔️
      $8.43
      Free shipping
      eBay Refurbished
    • Vivint SmartHome VS-DW2100-345 Recessed Door Contact Sensor NEW

      Vivint SmartHome VS-DW2100-345 Recessed Door Contact Sensor NEW

      $22.95
    • 130db Water Leak Alarm Flood Level Overflow Detector Sensor Home Security Alert

      130db Water Leak Alarm Flood Level Overflow Detector Sensor Home Security Alert

      $8.98
      Was: $12.98
      or Best Offer
    • LOT OF 10 ECOLINK WST-212 HONEYWELL DOOR/WINDOW SENSOR W/LOCAL BYPASS

      LOT OF 10 ECOLINK WST-212 HONEYWELL DOOR/WINDOW SENSOR W/LOCAL BYPASS

      $42.99
      Free shipping
      or Best Offer
    • U.S Patrol Driveway Patrol Garage Motion Sensor Security Infrared System White

      U.S Patrol Driveway Patrol Garage Motion Sensor Security Infrared System White

      (525)525 product ratings - U.S Patrol Driveway Patrol Garage Motion Sensor Security Infrared System White
      $16.80
      Free shipping

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    Top Rated

    • Honeywell 5800PIRRES Wireless LED Motion Sensor
      Honeywell 5800PIRRES Wireless LED Motion Sensor
      (68)Total Ratings 68
      90% agree - Would recommend
      $34.00 New
      $19.99 Used
    • Glentronics BWD-HWA Basement Watchdog Water Alarm
      Glentronics BWD-HWA Basement Watchdog Water Alarm
      (55)Total Ratings 55
      100% agree - Would recommend
      $16.31 New
      $14.99 Used
    • DSC WS4945 Wireless Door Window Contact Transmitter
      DSC WS4945 Wireless Door Window Contact Transmitter
      (51)Total Ratings 51
      100% agree - Would recommend
      $27.86 New
      $14.99 Used
    • Glentronics BWD-HWA Watchdog Water Alarm - White
      Glentronics BWD-HWA Watchdog Water Alarm - White
      (42)Total Ratings 42
      94% agree - Would recommend
      $13.99 New
      $12.39 Used
    • Ring Alarm Motion Detector - White - 4SP1S7-0EN0
      Ring Alarm Motion Detector - White - 4SP1S7-0EN0
      (34)Total Ratings 34
      100% agree - Would recommend
      $21.95 New
      $15.00 Used
    • Honeywell Ademco 5816 Wireless Door Window Contact Sensor Transmitter 5816wmwh
      Honeywell Ademco 5816 Wireless Door Window Contact Sensor Transmitter 5816wmwh
      (30)Total Ratings 30
      100% agree - Would recommend
      $24.16 New
    • Guardline Long Range Wireless Driveway Motion Detector (FBAGL5000)
      Guardline Long Range Wireless Driveway Motion Detector (FBAGL5000)
      (29)Total Ratings 29
      100% agree - Would recommend
      $45.00 New
    • Ring 4SP1SZ-0EN0 Motion Detector Alarm - White
      Ring 4SP1SZ-0EN0 Motion Detector Alarm - White
      (26)Total Ratings 26
      96% agree - Would recommend
      $24.99 New
      $20.00 Used

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