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FaucetsMore Top BrandsResold Cooling & HeatingResold HeatersResold Home ImprovementSafety Equipment and GearAir QualityAir ToolsAlarm SystemsAll Home SecurityAll Renewable EnergyAll Tool SetsBathroom Cabinets & FixturesBathroom HardwareBathroom PlumbingBetter Homes & Gardens Home ImprovementBrackets and Angle IronsBreakers, Distributors, and Load CentersCar Emergency SuppliesCarbon Monoxide AlarmsCaulking & SealantsChains, Ropes and TiedownsCommercial LightingDehumidifiersDimmers, Switches, and Wall PlatesDoor HardwareDoor Security HardwareDoorbellsElectric MotorsElectrical ToolsElectrical Wire & CableElectronic Communication ComponentsEmergency SuppliesEmersonExtension CordsFastenersFire SafetyFireplacesFlashlightsFlooring Accessories & ToolsFurniture HardwareGarage CabinetsGarage Door Openers and HardwareGarage LightsGarage Storage SystemsGate HardwareGatesGuttering & DrainageHand ToolsHardware KnobsHome SafetyHooksHVAC Ducting and VentilationInterconnect TerminalsKitchen Fixtures and MaterialsKitchen HardwareKitchen PlumbingLight BulbsLight TimersLocker LocksMailboxes and Mailbox AccessoriesMayfairMechanics ToolsMetal CuttingOutletsPadlocksPaint Supplies & ToolsPersonal PreparednessPersonal Protective EquipmentPersonal SafetyPipes, Fittings & AccessoriesPlug AdaptersPower Tool AccessoriesPower ToolsPower TransformersPro ToolsProtective Metal Working GearSafes & LockboxesSafety DetectorsSealants, Fillers and AdhesivesShop Plumbing by FixtureSolar AccessoriesSolar Charge ControllerSolderingStep StoolsStorage ContainersStorm & Flood PrepSurveillanceTestersThermostatsTile Tools & MaterialsToilets and BidetsTool Equipment & StorageTOTOUtility Sinks & FaucetsValves & Valve RepairWater DispensersWater FiltersWater Filtration & Water SoftenersWater HeatersWater Heaters, Pumps & TanksWeatherproof CoversWildfire PrepWinter PrepWoodworking Tools

Sensor Contact

Uses item details. Price when purchased online

Vivnt Recessed Door Contact Sensor VS-DW2100-345 $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345
Sponsored
current price $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345

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VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, 58 Chimes & 5 Adjustable Volume, Doors Ringer Alert for Business, Store, Home, Office When Entering $25.90

VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, 58 Chimes & 5 Adjustable Volume, Doors Ringer Alert for Business, Store, Home, Office When Entering
Sponsored
current price $25.90

VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, 58 Chimes & 5 Adjustable Volume, Doors Ringer Alert for Business, Store, Home, Office When Entering

5 out of 5 Stars. 1 reviews

VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, Remote Control with App, Doors Ringer Alert for Business, Store, Home, Office (6 Sensors + 1 Receiver) $59.90

VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, Remote Control with App, Doors Ringer Alert for Business, Store, Home, Office (6 Sensors + 1 Receiver)
Sponsored
current price $59.90

VEVOR Door Chime, DC 12V, Wireless Door Open Contact Sensor Alarm Chime with 656 ft Range, Remote Control with App, Doors Ringer Alert for Business, Store, Home, Office (6 Sensors + 1 Receiver)

3.7 out of 5 Stars. 3 reviews

Reduced price DAYBETTER 2PACK Solar Street Light, 180 LED Beads Solar Motion Lights Outdoor Waterproof with Remote for Patio Parking Lot Garage Yard $39.99 Was $59.99

DAYBETTER 2PACK Solar Street Light, 180 LED Beads Solar Motion Lights Outdoor Waterproof with Remote for Patio Parking Lot Garage Yard
Sponsored
current price Now $39.99, Was $59.99

DAYBETTER 2PACK Solar Street Light, 180 LED Beads Solar Motion Lights Outdoor Waterproof with Remote for Patio Parking Lot Garage Yard

4.8 out of 5 Stars. 5 reviews
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Vivnt Recessed Door Contact Sensor VS-DW2100-345 $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345
current price $19.95

Vivnt Recessed Door Contact Sensor VS-DW2100-345

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Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black $7.88

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black
current price $7.88

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black

2pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White $9.49

2pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White
current price $9.49

2pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White

2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $15.18

2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
current price $15.18

2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation

5 out of 5 Stars. 1 reviews

Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $31.95

Eve Door & Window (Matter)  Smart contact sensor for doors & windows, open/closed state,  automatic control of accessories, notifications, Thread
current price $31.95

Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread

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Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) - White $81.79 Was $93.99

Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) - White
current price Now $81.79, Was $93.99

Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) - White

2 out of 5 Stars. 1 reviews
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KFFKFF Wireless Door Chime, DC 12V, Contact Sensor Alarm with 656 ft Range, App-Controlled Remote, Door Alert System for Business, Store, Home, Office (6 Sensors + 1 Receiver) $50.99 $50.99/ca

KFFKFF Wireless Door Chime, DC 12V, Contact Sensor Alarm with 656 ft Range, App-Controlled Remote, Door Alert System for Business, Store, Home, Office (6 Sensors + 1 Receiver)
Sponsored
current price $50.99
$50.99/ca

KFFKFF Wireless Door Chime, DC 12V, Contact Sensor Alarm with 656 ft Range, App-Controlled Remote, Door Alert System for Business, Store, Home, Office (6 Sensors + 1 Receiver)

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Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black $7.88

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black
Sponsored
current price $7.88

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black

10Sets Wired Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor With Double Side Tape For Security Window Sensors Was $17.99

10Sets Wired Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor With Double Side Tape For Security Window Sensors

10Sets Wired Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor With Double Side Tape For Security Window Sensors

Third Reality Zigbee Door and Window Contact Sensor with Build-in Zigbee Hub $17.99 Was $19.99

Third Reality Zigbee Door and Window Contact Sensor with Build-in Zigbee Hub
current price Now $17.99, Was $19.99

Third Reality Zigbee Door and Window Contact Sensor with Build-in Zigbee Hub

5 out of 5 Stars. 1 reviews

Recessed Door Contact Sensor - Vivint VS-DW2100-345 $26.94

Recessed Door Contact Sensor - Vivint VS-DW2100-345
current price $26.94

Recessed Door Contact Sensor - Vivint VS-DW2100-345

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required) $24.99

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required)
current price $24.99

YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required)

4 out of 5 Stars. 4 reviews

BOKYAN Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller, 105dB Security Alarm for Home Garage Office, White $14.74

BOKYAN Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller, 105dB Security Alarm for Home Garage Office, White
current price $14.74

BOKYAN Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller, 105dB Security Alarm for Home Garage Office, White

Heavy Duty Garage Door Security Alarm Switch Contact Sensor Industrial DSC Ademco $19.95

Heavy Duty Garage Door Security Alarm Switch Contact Sensor Industrial DSC Ademco
current price $19.95

Heavy Duty Garage Door Security Alarm Switch Contact Sensor Industrial DSC Ademco

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
Black, variant on Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
White, variant on Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)

Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black 3 Pair $15.99

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black 3 Pair
current price $15.99

Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black 3 Pair

Best seller TOPGREENER In-Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, Wall Plate Included, On/Off Override, 4A, 500W, TSOS5-W, White, 2 Pack From $16.99

TOPGREENER In-Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, Wall Plate Included, On/Off Override, 4A, 500W, TSOS5-W, White, 2 Pack
Sponsored
From$1699

TOPGREENER In-Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, Wall Plate Included, On/Off Override, 4A, 500W, TSOS5-W, White, 2 Pack

4.5 out of 5 Stars. 50 reviews
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Reduced price 5C-55ZL Heavy Duty Alarm Switch Sensor, Normally Closed 3-Wire with Strong Attachment Force Garage Door Contact, 50 mm Sensing, Metal Safety Shutter Sensor with Bracket $17.99 Was $22.68

5C-55ZL Heavy Duty Alarm Switch Sensor, Normally Closed 3-Wire with Strong Attachment Force Garage Door Contact, 50 mm Sensing, Metal Safety Shutter Sensor with Bracket
Sponsored
current price Now $17.99, Was $22.68

5C-55ZL Heavy Duty Alarm Switch Sensor, Normally Closed 3-Wire with Strong Attachment Force Garage Door Contact, 50 mm Sensing, Metal Safety Shutter Sensor with Bracket

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2pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White $10.49

2pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
current price $10.49

2pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White

20 pcs Door Contacts Grey Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems $73.50

20 pcs Door Contacts Grey Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
current price $73.50

20 pcs Door Contacts Grey Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

Garage Door Sensor, Alarm Sensors Magnetic Contact For Home Garage Alarm Security $14.80

Garage Door Sensor, Alarm Sensors Magnetic Contact  For Home Garage Alarm Security
current price $14.80

Garage Door Sensor, Alarm Sensors Magnetic Contact For Home Garage Alarm Security

30pcs RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch $36.09

30pcs RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch
current price $36.09

30pcs RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch

Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed From $8.09

Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed
NC+NO, variant on Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed
Normally Closed, variant on Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed
Normally Open, variant on Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed
From$809

Compact Wired Garage Door Contact Sensor For Normally Open Normally Closed

WiFi Door Sensor: Wireless Window Sensor with App Alerts, Tuya Smart Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa Google Assistant(4-Pack) $66.28

WiFi Door Sensor: Wireless Window Sensor with App Alerts, Tuya Smart Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa Google Assistant(4-Pack)
current price $66.28

WiFi Door Sensor: Wireless Window Sensor with App Alerts, Tuya Smart Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa Google Assistant(4-Pack)

Uxcell Wired Door Contact Sensor N.O. N.C. Surface Mount Magnetic Reed Switch Black $12.99

Uxcell Wired Door Contact Sensor N.O. N.C. Surface Mount Magnetic Reed Switch Black
current price $12.99

Uxcell Wired Door Contact Sensor N.O. N.C. Surface Mount Magnetic Reed Switch Black

RC-36 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch Brown $8.49 Was $14.99

RC-36 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch Brown
current price Now $8.49, Was $14.99

RC-36 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch Brown

Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack From $25.99

Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack
Sponsored
From$2599

Siterwell AA Battery Operated Carbon Monoxide Detector Alarm, LCD Display,Portable for Travel Home,1-pack

4.6 out of 5 Stars. 133 reviews
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Clearance Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black From $13.58

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black
Sponsored
From$1358

Sgokeen Wireless Door Sensor Door Entry Chime, Door Open Alert with 600ft Range LED Indicators Receivers + Sensors Wireless Door Alarm,58 Ringtones Black

4.2 out of 5 Stars. 105 reviews
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2GIG DW30 Outdoor Wireless Contact Sensor $88.50

2GIG DW30 Outdoor Wireless Contact Sensor
current price $88.50

2GIG DW30 Outdoor Wireless Contact Sensor

YAHHU Wireless Wired Door Contact Magnetic Sensor Detector for Rolling Gate Home Security System Anti-Theft Alarm Accessories Rolling Door Magnetic Contact Sensor 7.87 inches / 20 cm $26.95

YAHHU Wireless Wired Door Contact Magnetic Sensor Detector for Rolling Gate Home Security System Anti-Theft Alarm Accessories Rolling Door Magnetic Contact Sensor 7.87 inches / 20 cm
current price $26.95

YAHHU Wireless Wired Door Contact Magnetic Sensor Detector for Rolling Gate Home Security System Anti-Theft Alarm Accessories Rolling Door Magnetic Contact Sensor 7.87 inches / 20 cm

20 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar $73.50

20 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar
current price $73.50

20 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar

2X 2.4GHz Wireless TTLOCK Door Sensor Door Contact Detection Windows Open Close Status Works with TTLOCK App Smart Locks $22.09

2X 2.4GHz Wireless TTLOCK Door Sensor Door Contact Detection Windows Open Close Status Works with TTLOCK App Smart Locks
current price $22.09

2X 2.4GHz Wireless TTLOCK Door Sensor Door Contact Detection Windows Open Close Status Works with TTLOCK App Smart Locks

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors Was $28.92

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors

Giaone Magnetic Door Window Contact Sensor Alarm Wireds Metal Security Burglars Alarm $13.40

Giaone Magnetic Door Window Contact Sensor Alarm Wireds Metal Security Burglars Alarm
current price $13.40

Giaone Magnetic Door Window Contact Sensor Alarm Wireds Metal Security Burglars Alarm

3 pcs White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems $15.70

3 pcs White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
current price $15.70

3 pcs White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

Reduced price NO NC Magnetic Door Window Contact Sensor Alarm Reed Switch Fit for GPS Alarm Was $9.57

NO NC Magnetic Door Window Contact Sensor Alarm Reed Switch Fit for GPS Alarm

NO NC Magnetic Door Window Contact Sensor Alarm Reed Switch Fit for GPS Alarm

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors Was $25.40

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors

Wired Magnetic Garage Door Sensor Alarm Contacts With Adjustable Bracket For Industrial Or Residential Overhead Doors

Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa From $30.75

Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa
1-Pack, variant on Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa
2-Pack, variant on Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa
3-Pack, variant on Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa
4-Pack, variant on Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa
From$3075

Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa

3 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems $16.58

3 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
current price $16.58

3 pcs Brown Door Contacts Surface Mount NC Security Alarm Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

20 pcs Wired White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems $73.50

20 pcs Wired White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
current price $73.50

20 pcs Wired White Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

Honeywell Home 5800Mini Wireless Door/ Window Contact $37.99

Honeywell Home 5800Mini Wireless Door/ Window Contact
current price $37.99

Honeywell Home 5800Mini Wireless Door/ Window Contact

5 out of 5 Stars. 7 reviews

SNNROO WiFi Door Sensor,Smart Window Contact Sensor Compatible with Alexa Google AssistantAPP Control and Message Alert Function, Wireless Security Alarm Door Open Chime Sensor for Home Bussiness $12.58

SNNROO WiFi Door Sensor,Smart Window Contact Sensor Compatible with Alexa Google AssistantAPP Control and Message Alert Function, Wireless Security Alarm Door Open Chime Sensor for Home Bussiness
current price $12.58

SNNROO WiFi Door Sensor,Smart Window Contact Sensor Compatible with Alexa Google AssistantAPP Control and Message Alert Function, Wireless Security Alarm Door Open Chime Sensor for Home Bussiness

Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App From $22.53

Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App
Available in additional 4 options
From$2253

Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App

1 out of 5 Stars. 1 reviews

Surface Mount Wired NC Door Contact Sensor Alarm for Door Window Cabinets 10pcs $11.97

Surface Mount Wired NC Door Contact Sensor Alarm for Door Window Cabinets 10pcs
current price $11.97

Surface Mount Wired NC Door Contact Sensor Alarm for Door Window Cabinets 10pcs

5 pcs White Recessed Door Contacts NC Security Alarm Window Sensors With Magnetic Reed Switch. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems $18.50

5 pcs White Recessed Door Contacts NC Security Alarm Window Sensors With Magnetic Reed Switch. These  Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems
current price $18.50

5 pcs White Recessed Door Contacts NC Security Alarm Window Sensors With Magnetic Reed Switch. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

DSC MX975 Addressable MX Door/Window Contact Sensor $48.99

DSC MX975 Addressable MX Door/Window Contact Sensor
current price $48.99

DSC MX975 Addressable MX Door/Window Contact Sensor

Highly rated by customers

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