Shop Window and Door Sensors for Home

Sponsored
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$99.99
Ring Alarm Contact Sensor 6-Pack - 2nd Gen | Monitor 6 Doors Or Windows | Instant Alerts | Approximately 3-Year Battery Life | Slim Design | Easy
Amazon.com
23K+
Free shipping
$99.99
Ring Alarm Contact Sensor 6-Pack - 2nd Gen | Monitor 6 Doors Or Windows | Instant Alerts | Approximately 3-Year Battery Life | Slim Design | Easy
Amazon.com
23K+
$39.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
27K+
Free shipping
$39.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
27K+
$19.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
26K+
$19.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
26K+
$21.89
Security Door Window Alarm, 90DB Wireless Sensor Door Window Burglar Alarm, Door Alarms For Kids Safety, Easy Installation Doorbell Alarms For
Amazon.com
129
$21.89
Security Door Window Alarm, 90DB Wireless Sensor Door Window Burglar Alarm, Door Alarms For Kids Safety, Easy Installation Doorbell Alarms For
Amazon.com
129
$18.89
Door Window Alarm, 90Db Door Alarms Sensor For Kids Safety, Home Security, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments,
Amazon.com
54
$18.89
Door Window Alarm, 90Db Door Alarms Sensor For Kids Safety, Home Security, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments,
Amazon.com
54
$19.99
RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch For Office Home Security System, Sets Of 5
Amazon.com
2
$19.99
RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch For Office Home Security System, Sets Of 5
Amazon.com
2
$17.99
Door Alarms For Kids Safety, VOXON Door Alarm For Home Security Window Alarm Personal Security Alarms Sensor Burglar For Pool, Cars, Sheds, Caravans
Amazon.com
1K+
$17.99
Door Alarms For Kids Safety, VOXON Door Alarm For Home Security Window Alarm Personal Security Alarms Sensor Burglar For Pool, Cars, Sheds, Caravans
Amazon.com
1K+
$14.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm-Window Pool Alarms For Home
Amazon.com
$14.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm-Window Pool Alarms For Home
Amazon.com
$20.91
GE Personal Security Window And Door Alarm, 2 Pack, DIY Protection, Burglar Alert, Wireless Chime/Alarm, Easy Installation, Home Security, Ideal For
Amazon.com
16K+
$20.91
GE Personal Security Window And Door Alarm, 2 Pack, DIY Protection, Burglar Alert, Wireless Chime/Alarm, Easy Installation, Home Security, Ideal For
Amazon.com
16K+
$11.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Wireless Sensor Door Window Burglar Alarm-Window Pool Alarms For Home, 6 Pack
Amazon.com
7K+
$11.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Wireless Sensor Door Window Burglar Alarm-Window Pool Alarms For Home, 6 Pack
Amazon.com
7K+
$14.89
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments, Offices, Hotel Rooms (10
Amazon.com
$14.89
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments, Offices, Hotel Rooms (10
Amazon.com
$58.20
Fibaro Home Intelligence Z - Wave Door / Window Sensor2 , 908 , 4 Mhz , White , ZW5 | Wired4signs USA
Wired4Signs
$58.20
Fibaro Home Intelligence Z - Wave Door / Window Sensor2 , 908 , 4 Mhz , White , ZW5 | Wired4signs USA
Wired4Signs
$9.99
$24.97
Defiant Wireless THD-DW2 Home Security Door/Window Alarm (2-Pack)
PrairieGrit
616
59% off
$9.99
$24.97
Defiant Wireless THD-DW2 Home Security Door/Window Alarm (2-Pack)
PrairieGrit
616
$11.99
Door-Window-Alarm-Personal-Security-Window-Burglar-Home-Wireless-Magnetic-Sensor-Anti-Theft-Alarm-6-Pcs-Alarm-Batteries-Included
Walmart
11
$11.99
Door-Window-Alarm-Personal-Security-Window-Burglar-Home-Wireless-Magnetic-Sensor-Anti-Theft-Alarm-6-Pcs-Alarm-Batteries-Included
Walmart
11
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$88.99
Door & Window (Matter) - Smart Contact Sensor, Works With Apple Home/Smartthings/Alexa/Google Home 3-Pack (White)
Home Depot
1
Free shipping
$88.99
Door & Window (Matter) - Smart Contact Sensor, Works With Apple Home/Smartthings/Alexa/Google Home 3-Pack (White)
Home Depot
1
$19.23
Feit Electric Battery-Powered Smart Wi-Fi Door Window Sensor (MOT/DOOR/WIFI/BAT)
Lighting Supply
$19.23
Feit Electric Battery-Powered Smart Wi-Fi Door Window Sensor (MOT/DOOR/WIFI/BAT)
Lighting Supply
$59.98
Entry Sensor (2-Pack) White / 2 Pack
Eufy
$59.98
Entry Sensor (2-Pack) White / 2 Pack
Eufy
$26.99
MOBI Smart Wi-Fi Door & Window Sensor Real-Time Alerts, App Control, Easy Install - 2Pk
Target
Free shipping
$26.99
MOBI Smart Wi-Fi Door & Window Sensor Real-Time Alerts, App Control, Easy Install - 2Pk
Target
Free shipping
$11.04
$19.99
Goveelife Door And Window Sensor, 1 Pack
Govee-US
44% off
$11.04
$19.99
Goveelife Door And Window Sensor, 1 Pack
Govee-US
$29.99
Entry Sensor White
Eufy
1K+
$29.99
Entry Sensor White
Eufy
1K+
$34.99
Sabre Door Or Window Alarm - 4-Pk., 120Db, Adjustable Settings, Battery Operated, Model HS-DWA-4
Northern Tool
128
$34.99
Sabre Door Or Window Alarm - 4-Pk., 120Db, Adjustable Settings, Battery Operated, Model HS-DWA-4
Northern Tool
128
$3.33
$3.92
Door Window Sensor Real Time Wireless Smart Magnetic Door And Window Sensors Window Alarm Sensors Home Pet Detector Safety Alarms Home Child Safety
Temu US
7
15% off
$3.33
$3.92
Door Window Sensor Real Time Wireless Smart Magnetic Door And Window Sensors Window Alarm Sensors Home Pet Detector Safety Alarms Home Child Safety
Temu US
7
$21.99
Carol Wright Wireless Window And Door Alarm, White
CarolWright
$21.99
Carol Wright Wireless Window And Door Alarm, White
CarolWright
$58.20
Fibaro Z-Wave Door/Window Sensor2 ZW5 908,4 Mhz
Wired4Signs
$58.20
Fibaro Z-Wave Door/Window Sensor2 ZW5 908,4 Mhz
Wired4Signs
$26.80
Set Of 2 Simplisafe Entry Sensor White Door &Window Security Magnetic
eBay
51
Free shipping
$26.80
Set Of 2 Simplisafe Entry Sensor White Door &Window Security Magnetic
eBay
51
$4.26
$4.97
Door Window Sensor Real Time Wireless Smart Magnetic Door And Window Sensors Window Alarm Sensors Home Pet Detector Safety Alarms Home Child Safety
Temu US
7
14% off
$4.26
$4.97
Door Window Sensor Real Time Wireless Smart Magnetic Door And Window Sensors Window Alarm Sensors Home Pet Detector Safety Alarms Home Child Safety
Temu US
7
$29.95
$34.95
Wireless Window/Door Exit Sensor
Concord Health Supply
1
14% off
$29.95
$34.95
Wireless Window/Door Exit Sensor
Concord Health Supply
1
$12.42
$20.04
Aqara Door Window Sensor Zigbee Wireless Connection Smart Mini Door Sensor Work With APP Homekit Mi
Aliexpress
38% off
$12.42
$20.04
Aqara Door Window Sensor Zigbee Wireless Connection Smart Mini Door Sensor Work With APP Homekit Mi
Aliexpress
$43.51
PGST Door Sensor, Intelligent Home Door And Window Security Detection, Door Opening Alarm, 433Mhz Door Detector, Used To Detect
AliExpress
$43.51
PGST Door Sensor, Intelligent Home Door And Window Security Detection, Door Opening Alarm, 433Mhz Door Detector, Used To Detect
AliExpress
$89.97
Entry Sensor (3-Pack) White / 3 Pack
Eufy
$89.97
Entry Sensor (3-Pack) White / 3 Pack
Eufy
$147.04
Wireless Door/Window Entry Security Burglar Sensor Alarm Magnetic
eBay
Free shipping
$147.04
Wireless Door/Window Entry Security Burglar Sensor Alarm Magnetic
eBay
Free shipping
$22.49
$49.99
Sabre Home Security Kit With Remote - 125Db, 1 Motion Sensor Alarm, 2 Door Or Window Alarms, 1 Key Fob, Model WP-2020
Northern Tool
30
55% off
$22.49
$49.99
Sabre Home Security Kit With Remote - 125Db, 1 Motion Sensor Alarm, 2 Door Or Window Alarms, 1 Key Fob, Model WP-2020
Northern Tool
30
$34.95
Ge Wireless Control Center Window Door Sensor Kit 45142 Choice Alert
eBay
$34.95
Ge Wireless Control Center Window Door Sensor Kit 45142 Choice Alert
eBay
$10.97
Aqara Door Window Sensor Zigbee Wireless Connection Alarm Smart Mini Door Sensor Work With Aqara
Aliexpress
Free shipping
$10.97
Aqara Door Window Sensor Zigbee Wireless Connection Alarm Smart Mini Door Sensor Work With Aqara
Aliexpress
Free shipping
$25.99
Feit Electric Wireless White Indoor Smart Wifi Door Window Sensor - MOT/DOORWIFIBAT
Acme Tools
$25.99
Feit Electric Wireless White Indoor Smart Wifi Door Window Sensor - MOT/DOORWIFIBAT
Acme Tools
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Shop Window and Door Sensors for Home

Sponsored
About our ads
$99.99
Ring Alarm Contact Sensor 6-Pack - 2nd Gen | Monitor 6 Doors Or Windows | Instant Alerts | Approximately 3-Year Battery Life | Slim Design | Easy
Amazon.com
23K+
Free shipping
$99.99
Ring Alarm Contact Sensor 6-Pack - 2nd Gen | Monitor 6 Doors Or Windows | Instant Alerts | Approximately 3-Year Battery Life | Slim Design | Easy
Amazon.com
23K+
$39.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
27K+
Free shipping
$39.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
27K+
$19.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
26K+
$19.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
26K+
$21.89
Security Door Window Alarm, 90DB Wireless Sensor Door Window Burglar Alarm, Door Alarms For Kids Safety, Easy Installation Doorbell Alarms For
Amazon.com
129
$21.89
Security Door Window Alarm, 90DB Wireless Sensor Door Window Burglar Alarm, Door Alarms For Kids Safety, Easy Installation Doorbell Alarms For
Amazon.com
129
$18.89
Door Window Alarm, 90Db Door Alarms Sensor For Kids Safety, Home Security, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments,
Amazon.com
54
$18.89
Door Window Alarm, 90Db Door Alarms Sensor For Kids Safety, Home Security, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments,
Amazon.com
54
$19.99
RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch For Office Home Security System, Sets Of 5
Amazon.com
2
$19.99
RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch For Office Home Security System, Sets Of 5
Amazon.com
2
$17.99
Door Alarms For Kids Safety, VOXON Door Alarm For Home Security Window Alarm Personal Security Alarms Sensor Burglar For Pool, Cars, Sheds, Caravans
Amazon.com
1K+
$17.99
Door Alarms For Kids Safety, VOXON Door Alarm For Home Security Window Alarm Personal Security Alarms Sensor Burglar For Pool, Cars, Sheds, Caravans
Amazon.com
1K+
$14.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm-Window Pool Alarms For Home
Amazon.com
$14.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm-Window Pool Alarms For Home
Amazon.com
$20.91
GE Personal Security Window And Door Alarm, 2 Pack, DIY Protection, Burglar Alert, Wireless Chime/Alarm, Easy Installation, Home Security, Ideal For
Amazon.com
16K+
$20.91
GE Personal Security Window And Door Alarm, 2 Pack, DIY Protection, Burglar Alert, Wireless Chime/Alarm, Easy Installation, Home Security, Ideal For
Amazon.com
16K+
$11.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Wireless Sensor Door Window Burglar Alarm-Window Pool Alarms For Home, 6 Pack
Amazon.com
7K+
$11.99
Door Window Alarm, 90DB Door Alarms For Kids Safety, Wireless Sensor Door Window Burglar Alarm-Window Pool Alarms For Home, 6 Pack
Amazon.com
7K+
$14.89
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments, Offices, Hotel Rooms (10
Amazon.com
$14.89
Door Window Alarm, 90DB Door Alarms For Kids Safety, Door Window Burglar Alarm, Window Pool Alarms For Home, Apartments, Offices, Hotel Rooms (10
Amazon.com
$58.20
Fibaro Home Intelligence Z - Wave Door / Window Sensor2 , 908 , 4 Mhz , White , ZW5 | Wired4signs USA
Wired4Signs
$58.20
Fibaro Home Intelligence Z - Wave Door / Window Sensor2 , 908 , 4 Mhz , White , ZW5 | Wired4signs USA
Wired4Signs
$9.99
$24.97
Defiant Wireless THD-DW2 Home Security Door/Window Alarm (2-Pack)
PrairieGrit
616
59% off
$9.99
$24.97
Defiant Wireless THD-DW2 Home Security Door/Window Alarm (2-Pack)
PrairieGrit
616
$11.99
Door-Window-Alarm-Personal-Security-Window-Burglar-Home-Wireless-Magnetic-Sensor-Anti-Theft-Alarm-6-Pcs-Alarm-Batteries-Included
Walmart
11
$11.99
Door-Window-Alarm-Personal-Security-Window-Burglar-Home-Wireless-Magnetic-Sensor-Anti-Theft-Alarm-6-Pcs-Alarm-Batteries-Included
Walmart
11
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$12.35
Sabre Door Or Window Alarm White Plastic White HS-DWA2
DkHardware.com
1K+
$88.99
Door & Window (Matter) - Smart Contact Sensor, Works With Apple Home/Smartthings/Alexa/Google Home 3-Pack (White)
Home Depot
1
Free shipping
$88.99
Door & Window (Matter) - Smart Contact Sensor, Works With Apple Home/Smartthings/Alexa/Google Home 3-Pack (White)
Home Depot
1
$19.23
Feit Electric Battery-Powered Smart Wi-Fi Door Window Sensor (MOT/DOOR/WIFI/BAT)
Lighting Supply
$19.23
Feit Electric Battery-Powered Smart Wi-Fi Door Window Sensor (MOT/DOOR/WIFI/BAT)
Lighting Supply
$59.98
Entry Sensor (2-Pack) White / 2 Pack
Eufy
$59.98
Entry Sensor (2-Pack) White / 2 Pack
Eufy