Door Contact Sensor(446)
Uses item details. Price when purchased online
Vivnt Recessed Door Contact Sensor VS-DW2100-345 $17.95 Was $19.95
Sponsored
Now$1795
current price Now $17.95, Was $19.95$19.95
Vivnt Recessed Door Contact Sensor VS-DW2100-345
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
Sponsored
$5099
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)
Cotinse Wireless Door Chime with RGB Light, 700ft Range Door Open Sensor Alarm, 58 Melodies, 5 Volume Levels, Security Alert for Home, Business & Retail Store $15.99
Sponsored
$1599
current price $15.99Cotinse Wireless Door Chime with RGB Light, 700ft Range Door Open Sensor Alarm, 58 Melodies, 5 Volume Levels, Security Alert for Home, Business & Retail Store
11 out of 5 Stars. 1 reviews
Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black $7.88
Sponsored
$788
current price $7.88Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black
Best seller Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included) From $10.99
2 options
Available in additional 2 optionsFrom$1099
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (8 Pcs) Home Alarm(Batteries not included)
2293.8 out of 5 Stars. 229 reviews
Best seller Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
Bitiwend Door Alarm Sensor Bitiwend Wireless Door Chime Alert for Kids Safety Home (1 Receiver+3 Sensors)
1344.1 out of 5 Stars. 134 reviews
50+ bought since yesterday Philips Personal Security Window and Door Alarm, 2-Pack From $15.97
2 options
Available in additional 2 optionsFrom$1597
Philips Personal Security Window and Door Alarm, 2-Pack
8694.5 out of 5 Stars. 869 reviews
Best seller 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
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
1154.1 out of 5 Stars. 115 reviews
Best seller Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System Was $49.99
Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System
334.6 out of 5 Stars. 33 reviews
Door Alarm, AMIR Anti-Theft 125DB Door Alarm Window Alarm For Home Office Warehouse Shop Elderly Kids Security 4PCS From $21.99
From$2199
Door Alarm, AMIR Anti-Theft 125DB Door Alarm Window Alarm For Home Office Warehouse Shop Elderly Kids Security 4PCS
434.3 out of 5 Stars. 43 reviews
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
Sponsored
$2590
current price $25.90VEVOR 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
15 out of 5 Stars. 1 reviews
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 $15.98 Was $17.99
Sponsored
Now$1598
current price Now $15.98, Was $17.99$17.99
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
Best seller SABRE Door Handle Alarm 110dB Door Alarm for Home Security $9.79 Was $12.79
Now$979
current price Now $9.79, Was $12.79$12.79
SABRE Door Handle Alarm 110dB Door Alarm for Home Security
2374.1 out of 5 Stars. 237 reviews
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
$2590
current price $25.90VEVOR 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
15 out of 5 Stars. 1 reviews
WiFi Smart Door Sensor, Wireless Door Window Sensor Alarm, Mini Contact Sensor for Home Security, Push Notification, Volume Adjustable, Timer, Compatible with Alexa/Google Assistant 2 Pack $29.56
$2956
current price $29.56WiFi Smart Door Sensor, Wireless Door Window Sensor Alarm, Mini Contact Sensor for Home Security, Push Notification, Volume Adjustable, Timer, Compatible with Alexa/Google Assistant 2 Pack
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (10 Pcs) Home Alarm(Batteries not included) From $11.89
3 options
Available in additional 3 optionsFrom$1189
Door Window Alarm, Personal Security Window, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (10 Pcs) Home Alarm(Batteries not included)
433.7 out of 5 Stars. 43 reviews
Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread $31.80
$3180
current price $31.80Eve Door & Window (Matter) Smart contact sensor for doors & windows, open/closed state, automatic control of accessories, notifications, Thread
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 $26.98
$2698
current price $26.98YAHHU 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
M Buder Door Window Magnetic Contact Wired Sensor Detector Switch for Home Garage Alarm Security, 1.9 inches / 50mm Sensing Distance $16.77
$1677
current price $16.77M Buder Door Window Magnetic Contact Wired Sensor Detector Switch for Home Garage Alarm Security, 1.9 inches / 50mm Sensing Distance
Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office Was $15.61
Window Alarm, 10-Pack Wireless Window Door Entry Alarm Burglar Security Alarm Magnetic Sensor Ideal for Home, Garage, Apartment, Dorm, Office
104.4 out of 5 Stars. 10 reviews
Entry Sensor $13.49 Was $14.99
Sponsored
Now$1349
current price Now $13.49, Was $14.99$14.99
Entry Sensor
774.7 out of 5 Stars. 77 reviews
BOKYAN Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller, 105dB Security Alarm for Home Garage Office, White $14.59
$1459
current price $14.59BOKYAN Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller, 105dB Security Alarm for Home Garage Office, White
Honeywell Home 5800Mini Wireless Door/ Window Contact $34.99
$3499
current price $34.99Honeywell Home 5800Mini Wireless Door/ Window Contact
75 out of 5 Stars. 7 reviews
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
$5099
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)
10Sets Wired Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor With Double Side Tape For Security Window Sensors $13.99
$1399
current price $13.9910Sets Wired Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor With Double Side Tape For Security Window Sensors
GREENCYCLE Wireless Door Open Sensor Chime, Door Entry Chime with Adjustable Volume, 48 Chimes, Nightlight Function, Magnetic Door Chime for Business Home Office Store, 1 Receiver and 2 Sensors From $19.90
From$1990
GREENCYCLE Wireless Door Open Sensor Chime, Door Entry Chime with Adjustable Volume, 48 Chimes, Nightlight Function, Magnetic Door Chime for Business Home Office Store, 1 Receiver and 2 Sensors
524.3 out of 5 Stars. 52 reviews
Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert, Store Door Entry Chime Doorbell with 1 PIR Motion Sensor Detectors and 1 Wireless Plug-in Receiver for Front Doors Window Frames $14.98
$1498
current price $14.98Wireless Home Security Driveway Alarm, Motion Sensor Detect Alert, Store Door Entry Chime Doorbell with 1 PIR Motion Sensor Detectors and 1 Wireless Plug-in Receiver for Front Doors Window Frames
94.2 out of 5 Stars. 9 reviews
Entry Sensor $13.49 Was $14.99
Now$1349
current price Now $13.49, Was $14.99$14.99
Entry Sensor
774.7 out of 5 Stars. 77 reviews
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included) From $12.49
From$1249
Smart WiFi Door and Window Sensor, No Hub Required Wireless Contact Sensor with App Alerts, Compatible with Alexa & Google Assistant(White, Battery Not Included)
Vivnt Recessed Door Contact Sensor VS-DW2100-345 $17.95 Was $19.95
Now$1795
current price Now $17.95, Was $19.95$19.95
Vivnt Recessed Door Contact Sensor VS-DW2100-345
MC-31 Door Window Surface-Mount Contact Sensor Alarm Reed Switch White Pack of 5 $12.29
$1229
current price $12.29MC-31 Door Window Surface-Mount Contact Sensor Alarm Reed Switch White Pack of 5
Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black $7.88
$788
current price $7.88Uxcell Wired Door Contact Sensor N.O. Surface Mount Magnetic Reed Switch Black
Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App From $18.99
4 options
Available in additional 4 optionsFrom$1899
Aqara Zigbee Smart Door Window Sensor - Wireless Mini Contact Detector for Home Security, Compatible with Mijia Gateway, HomeKit & Mijia App
11 out of 5 Stars. 1 reviews
YoLink LoRa Smart Door Sensor Starter Kit: SpeakerHub Audio Hub & 2 Door Sensors - Up to 1/4 Mile Range, Door Left-Open Reminders, up to 5 Year Batteries, Alexa, IFTTT, Home Assistant From $16.99
6 options
Available in additional 6 optionsFrom$1699
YoLink LoRa Smart Door Sensor Starter Kit: SpeakerHub Audio Hub & 2 Door Sensors - Up to 1/4 Mile Range, Door Left-Open Reminders, up to 5 Year Batteries, Alexa, IFTTT, Home Assistant
374.6 out of 5 Stars. 37 reviews
CallTou Wireless Door Sensor Alarm Wander Alert for Dementia Elderly Patient Alzheimer Door Open Chime Monitoring for Caregiver Home Care $39.99
$3999
current price $39.99CallTou Wireless Door Sensor Alarm Wander Alert for Dementia Elderly Patient Alzheimer Door Open Chime Monitoring for Caregiver Home Care
82.9 out of 5 Stars. 8 reviews
Fosmon WaveLink Wireless Doorbell Chime, Home Security System Alarm When Door Opens, Magnetic Door Alarm And Sensor For Store, Restaurant, Business, Kids, Elderly & More, 1 Sensor 1 Receiver From $9.99
8 options
Available in additional 8 optionsFrom$999
Fosmon WaveLink Wireless Doorbell Chime, Home Security System Alarm When Door Opens, Magnetic Door Alarm And Sensor For Store, Restaurant, Business, Kids, Elderly & More, 1 Sensor 1 Receiver
1464.1 out of 5 Stars. 146 reviews
2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation $15.18
$1518
current price $15.182Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
15 out of 5 Stars. 1 reviews
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
$2499
current price $24.99YOLINK 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)
44 out of 5 Stars. 4 reviews
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 $15.98 Was $17.99
Now$1598
current price Now $15.98, Was $17.99$17.99
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
Third Reality Zigbee Door and Window Contact Sensor with Build-in Zigbee Hub $19.99
$1999
current price $19.99Third Reality Zigbee Door and Window Contact Sensor with Build-in Zigbee Hub
15 out of 5 Stars. 1 reviews
TMT SN1 Wireless Smart Door Sensor, WiFi Window Alarm Sensor Up to 164 Feet, Wireless Contact Sensor for Home Security, Smart Home Devices Compatible with With ChowBOX $12.75 Was $15.00
Now$1275
current price Now $12.75, Was $15.00$15.00
TMT SN1 Wireless Smart Door Sensor, WiFi Window Alarm Sensor Up to 164 Feet, Wireless Contact Sensor for Home Security, Smart Home Devices Compatible with With ChowBOX
RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Recessed Switch White - (6 Sets) $8.70
$870
current price $8.70RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Recessed Switch White - (6 Sets)
CallToU Door Sensor Alarm, Portable Door Chime with Adjustable Volume, 500ft Range, Entry Alert for Home, Office, or Business, 2 Sensors + 1 Receiver From $20.99
2 options
Available in additional 2 optionsFrom$2099
CallToU Door Sensor Alarm, Portable Door Chime with Adjustable Volume, 500ft Range, Entry Alert for Home, Office, or Business, 2 Sensors + 1 Receiver
21 out of 5 Stars. 2 reviews
Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) - White $79.99 Was $93.99
Now$7999
current price Now $79.99, Was $93.99$93.99
Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) - White
12 out of 5 Stars. 1 reviews
20 Sets Nc Wired Surface Mounted Alarm Magnetic Door Alarm Contact Sensor Door Window Reed Switch Sensor with Double Side Tape for Security $28.78
$2878
current price $28.7820 Sets Nc Wired Surface Mounted Alarm Magnetic Door Alarm Contact Sensor Door Window Reed Switch Sensor with Double Side Tape for Security
Bitiwend Door Chime, Wireless Door Alarm Sensor with 600ft Range 58 Chimes Adjustable Volume Mute Mode LED Indicators, $12.99
$1299
current price $12.99Bitiwend Door Chime, Wireless Door Alarm Sensor with 600ft Range 58 Chimes Adjustable Volume Mute Mode LED Indicators,
674.4 out of 5 Stars. 67 reviews
2pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White $10.49
$1049
current price $10.492pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White
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