Shop security window sensors

Sponsored
About our ads
$30.00
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+
$30.00
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+
$17.99
Sopepoyie RC-36 NC/NO Recessed Wired Security Window Door Contact Sensor Brown Alarm Magnetic Reed Switch 5 Sets
Amazon.com
$17.99
Sopepoyie RC-36 NC/NO Recessed Wired Security Window Door Contact Sensor Brown Alarm Magnetic Reed Switch 5 Sets
Amazon.com
$18.99
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
2K+
$18.99
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
2K+
$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
328
$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
328
$35.88
Window Door Alarm, 125Db Door Alarm For Kids Safety, Door Window Sensor For Home Security
Amazon.com
95
Free shipping
$35.88
Window Door Alarm, 125Db Door Alarm For Kids Safety, Door Window Sensor For Home Security
Amazon.com
95
$24.50
Ring Alarm Glass Break Sensor - 2-Pack
Amazon.com
2K+
$24.50
Ring Alarm Glass Break Sensor - 2-Pack
Amazon.com
2K+
$39.99
Simplisafe Glassbreak Sensor - 20ft. Range - Sound Detection Technology - Compatible With The Simplisafe Home Security System - Latest Gen
Amazon.com
984
Free shipping
$39.99
Simplisafe Glassbreak Sensor - 20ft. Range - Sound Detection Technology - Compatible With The Simplisafe Home Security System - Latest Gen
Amazon.com
984
$47.84
Ion Digital (Micra-2GIG) Micra Wireless Window Security Sensor, 2GIG - Home Controls
Home Controls
$47.84
Ion Digital (Micra-2GIG) Micra Wireless Window Security Sensor, 2GIG - Home Controls
Home Controls
$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
15K+
$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
15K+
$29.99
Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
Amazon.com
1K+
$29.99
Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
Amazon.com
1K+
$19.50
Door Alarms When Opened For Kids Safety, 4 Pack 120Db Loud Window Sensors For Home Security, Pool Alarms, Door Alarm Sensor For House Hotel Sheds
Amazon.com
1K+
$19.50
Door Alarms When Opened For Kids Safety, 4 Pack 120Db Loud Window Sensors For Home Security, Pool Alarms, Door Alarm Sensor For House Hotel Sheds
Amazon.com
1K+
$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
33
$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
33
$59.99
Ecobee Smart Sensor For Doors & Windows 2 Pack - Wifi Contact Sensor For Home Security, Energy Savings - Compatible With Smart Thermostats -
Amazon.com
890
Free shipping
$59.99
Ecobee Smart Sensor For Doors & Windows 2 Pack - Wifi Contact Sensor For Home Security, Energy Savings - Compatible With Smart Thermostats -
Amazon.com
890
$15.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
25K+
$15.99
Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
Amazon.com
25K+
$28.40
Door Alarms For Kids Safety, 6 Pack 120Db Pool Alarm Sensor For Doors And Windows, Window Alarms For Home Security, Burglar Intruder Entry Alert For
Amazon.com
605
$28.40
Door Alarms For Kids Safety, 6 Pack 120Db Pool Alarm Sensor For Doors And Windows, Window Alarms For Home Security, Burglar Intruder Entry Alert For
Amazon.com
605
$27.19
Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Front Door Opening Sensor Alarms For Dementia, 120Db Burglar Alert
Amazon.com
114
$27.19
Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Front Door Opening Sensor Alarms For Dementia, 120Db Burglar Alert
Amazon.com
114
$7.59
2 Pack Door Alarms For Home Security, Window Door Alarms, Window Alarm Sensors, DIY Protection Burglar Bell Alarm For Home,Office
Amazon.com
62
$7.59
2 Pack Door Alarms For Home Security, Window Door Alarms, Window Alarm Sensors, DIY Protection Burglar Bell Alarm For Home,Office
Amazon.com
62
$49.98
Wyze Home Security System Entry Sensor - Window And Door Entry Protection (3-Pack)
Amazon.com
613
Free shipping
$49.98
Wyze Home Security System Entry Sensor - Window And Door Entry Protection (3-Pack)
Amazon.com
613
$8.99
4 Pack Door Window Alarm, Magnetic Burglar Alert Sensor, Loud Door Alarms For Kids Safety, DIY For Home Security, Office Protection,Shopping Store
Amazon.com
$8.99
4 Pack Door Window Alarm, Magnetic Burglar Alert Sensor, Loud Door Alarms For Kids Safety, DIY For Home Security, Office Protection,Shopping Store
Amazon.com
$42.99
Window Alarm Sensors Door Alarms For Kids Safety , Home Security For Pool, Burglar Alarm, Dementia Patients Open (10Pack)
Amazon.com
Free shipping
$42.99
Window Alarm Sensors Door Alarms For Kids Safety , Home Security For Pool, Burglar Alarm, Dementia Patients Open (10Pack)
Amazon.com
Free shipping
$12.99
Door Alarms For Kids Safety, VOXON Window Alarm Door Alarm For Home Security Personal Security Window Alarms Sensor Burglar Door Alarm For Pool,
Amazon.com
1K+
$12.99
Door Alarms For Kids Safety, VOXON Window Alarm Door Alarm For Home Security Personal Security Window Alarms Sensor Burglar Door Alarm For Pool,
Amazon.com
1K+
$64.80
Wireless Plug-In Door Window Alarms Adjustable Volume Chime/Alarm Door Window Alarm Sensor Home Security, White (4-Pack)
Home Depot
Free shipping
$64.80
Wireless Plug-In Door Window Alarms Adjustable Volume Chime/Alarm Door Window Alarm Sensor Home Security, White (4-Pack)
Home Depot
Free shipping
$7.89
Bnafes Recessed Security Alarm Contacts Door Window Sensor Magnetic Reed Switch White 4Pcs
Amazon.com
33
$7.89
Bnafes Recessed Security Alarm Contacts Door Window Sensor Magnetic Reed Switch White 4Pcs
Amazon.com
33
$13.99
6 Pack Wireless Security Window/Door Alarm, Magnetic Sensor Door Window Burglar Alert Alarm Pool Alarms Super Loud For Home, Garage, Apartment, Dorm
Amazon.com
65
$13.99
6 Pack Wireless Security Window/Door Alarm, Magnetic Sensor Door Window Burglar Alert Alarm Pool Alarms Super Loud For Home, Garage, Apartment, Dorm
Amazon.com
65
$10.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
25K+
$10.99
Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy
Amazon.com
25K+
$16.99
Door Window Alarm For Kids Safety, VOXON Door Alarm For Home Security Personal Security Window Alarms Sensor Burglar Door Alarm For Home, Cars,
Amazon.com
2K+
$16.99
Door Window Alarm For Kids Safety, VOXON Door Alarm For Home Security Personal Security Window Alarms Sensor Burglar Door Alarm For Home, Cars,
Amazon.com
2K+
$21.99
Wireless Door Alarm When Opened With Remote (2 Pack), Window Sensor Alarms For Home Security, Kids Safety, Dementia, Sliding Glass Door, 120Db
Amazon.com
196
$21.99
Wireless Door Alarm When Opened With Remote (2 Pack), Window Sensor Alarms For Home Security, Kids Safety, Dementia, Sliding Glass Door, 120Db
Amazon.com
196
$27.19
Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Glass Front Door Opening Sensor Alarms For Dementia, 120Db Burglar
Amazon.com
114
$27.19
Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Glass Front Door Opening Sensor Alarms For Dementia, 120Db Burglar
Amazon.com
114
$14.99
HIIXHC Personal Security Window & Door Alarm Bell | Wireless Sensor Door Window Burglar Alarm | Pack Of 10
Amazon.com
5K+
$14.99
HIIXHC Personal Security Window & Door Alarm Bell | Wireless Sensor Door Window Burglar Alarm | Pack Of 10
Amazon.com
5K+
$12.88
Bnafes RC-36 NC+NO Recessed Security Window Door Contact Sensor Alarm Magnetic Reed Switch 2 Sets
Amazon.com
11
$12.88
Bnafes RC-36 NC+NO Recessed Security Window Door Contact Sensor Alarm Magnetic Reed Switch 2 Sets
Amazon.com
11
$19.99
Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
Amazon.com
45
$19.99
Tokatuker NC NO Magnetic Switch Wired Recessed Door Sensor Hidden Window Contact Reed Switch For Alarm System Access Control Replace
Amazon.com
45
$21.69
Smart Wifi Door And Window Alarm Sensor For Home Security
Evalm
$21.69
Smart Wifi Door And Window Alarm Sensor For Home Security
Evalm
$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
$21.90
WBM Smart Wifi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, App Control 4.39 H X 2.57 W X 2.57 D In
Wayfair
$21.90
WBM Smart Wifi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, App Control 4.39 H X 2.57 W X 2.57 D In
Wayfair
$9.99
Switchbot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm
Tpto
$9.99
Switchbot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm
Tpto
$8.99
KERUI D121 Wireless Door And Window Sensor Alarm For Home Security And Kids Safety
Evalm
$8.99
KERUI D121 Wireless Door And Window Sensor Alarm For Home Security And Kids Safety
Evalm
See more
See less
    Some results have been hidden because they may be inaccessible to you.Show inaccessible results
    See more images

    Shop security window sensors

    Sponsored
    About our ads
    $30.00
    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+
    $30.00
    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+
    $17.99
    Sopepoyie RC-36 NC/NO Recessed Wired Security Window Door Contact Sensor Brown Alarm Magnetic Reed Switch 5 Sets
    Amazon.com
    $17.99
    Sopepoyie RC-36 NC/NO Recessed Wired Security Window Door Contact Sensor Brown Alarm Magnetic Reed Switch 5 Sets
    Amazon.com
    $18.99
    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
    2K+
    $18.99
    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
    2K+
    $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
    328
    $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
    328
    $35.88
    Window Door Alarm, 125Db Door Alarm For Kids Safety, Door Window Sensor For Home Security
    Amazon.com
    95
    Free shipping
    $35.88
    Window Door Alarm, 125Db Door Alarm For Kids Safety, Door Window Sensor For Home Security
    Amazon.com
    95
    $24.50
    Ring Alarm Glass Break Sensor - 2-Pack
    Amazon.com
    2K+
    $24.50
    Ring Alarm Glass Break Sensor - 2-Pack
    Amazon.com
    2K+
    $39.99
    Simplisafe Glassbreak Sensor - 20ft. Range - Sound Detection Technology - Compatible With The Simplisafe Home Security System - Latest Gen
    Amazon.com
    984
    Free shipping
    $39.99
    Simplisafe Glassbreak Sensor - 20ft. Range - Sound Detection Technology - Compatible With The Simplisafe Home Security System - Latest Gen
    Amazon.com
    984
    $47.84
    Ion Digital (Micra-2GIG) Micra Wireless Window Security Sensor, 2GIG - Home Controls
    Home Controls
    $47.84
    Ion Digital (Micra-2GIG) Micra Wireless Window Security Sensor, 2GIG - Home Controls
    Home Controls
    $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
    15K+
    $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
    15K+
    $29.99
    Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
    Amazon.com
    1K+
    $29.99
    Eufy Security Entry Sensor, Detects Opened And Closed Doors Or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor
    Amazon.com
    1K+
    $19.50
    Door Alarms When Opened For Kids Safety, 4 Pack 120Db Loud Window Sensors For Home Security, Pool Alarms, Door Alarm Sensor For House Hotel Sheds
    Amazon.com
    1K+
    $19.50
    Door Alarms When Opened For Kids Safety, 4 Pack 120Db Loud Window Sensors For Home Security, Pool Alarms, Door Alarm Sensor For House Hotel Sheds
    Amazon.com
    1K+
    $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
    33
    $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
    33
    $59.99
    Ecobee Smart Sensor For Doors & Windows 2 Pack - Wifi Contact Sensor For Home Security, Energy Savings - Compatible With Smart Thermostats -
    Amazon.com
    890
    Free shipping
    $59.99
    Ecobee Smart Sensor For Doors & Windows 2 Pack - Wifi Contact Sensor For Home Security, Energy Savings - Compatible With Smart Thermostats -
    Amazon.com
    890
    $15.99
    Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
    Amazon.com
    25K+
    $15.99
    Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation |
    Amazon.com
    25K+
    $28.40
    Door Alarms For Kids Safety, 6 Pack 120Db Pool Alarm Sensor For Doors And Windows, Window Alarms For Home Security, Burglar Intruder Entry Alert For
    Amazon.com
    605
    $28.40
    Door Alarms For Kids Safety, 6 Pack 120Db Pool Alarm Sensor For Doors And Windows, Window Alarms For Home Security, Burglar Intruder Entry Alert For
    Amazon.com
    605
    $27.19
    Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Front Door Opening Sensor Alarms For Dementia, 120Db Burglar Alert
    Amazon.com
    114
    $27.19
    Window And Door Alarm When Opened (5 Pack) For Kids Safety/Home Security, Sliding Front Door Opening Sensor Alarms For Dementia, 120Db Burglar Alert
    Amazon.com
    114
    $7.59
    2 Pack Door Alarms For Home Security, Window Door Alarms, Window Alarm Sensors, DIY Protection Burglar Bell Alarm For Home,Office
    Amazon.com
    62
    $7.59
    2 Pack Door Alarms For Home Security, Window Door Alarms, Window Alarm Sensors, DIY Protection Burglar Bell Alarm For Home,Office
    Amazon.com
    62
    $49.98
    Wyze Home Security System Entry Sensor - Window And Door Entry Protection (3-Pack)
    Amazon.com
    613
    Free shipping
    $49.98
    Wyze Home Security System Entry Sensor - Window And Door Entry Protection (3-Pack)
    Amazon.com
    613