$8.08
HOME SECURITY & HOME DEFENSEAmazon$22.69
2 Pack WiFi Door Window Sensor Detector: Wireless Security Alarm Door Sensor, Tuya Door Open Contact Sensor, Compatible with Alexa,Google Home,Siri, Smart Door Sensors for Home Business SecurityAmazon$29.99
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. 4 PackAmazon$25.99
YisTech Caregiver Pager Door Alarms for Dementia Patients/Kids Safety/Home Security,Door Sensor Alarm for Elderly/Business/Home/Store/Mailbox (Two Sensor One Receiver)AmazonSAVE $4.03
$9.39$13.42
Refrigerator Door Alarm Door Window Alarm For Home Magnetic Security Sensor Windows Open Alarms PoolAliExpress$22.99
Replacement Door Window Sensor for Xfinity Home Security LDHD2AZW (Pack, 2)Amazon$39.99
OOCOME Door Chime, WiFi Wireless Door Window Open Contact Sensor Alarm, Home Security Alarm System, APP Remote Control with 1 Receivers, 5 Sensors, 2 Remote Controls for Shops/Companies/Homes/OfficeAmazon$1.57
New Door Window Wireless Burglar Alarm System Safety Security Device Home Security Anti-theft DoorAliExpressSAVE $2.03
$17.95$19.98
Homezone Wi-Fi Smart Wireless Window/Door Alarm Sensor, WhiteWalmartSAVE $5.65
$9.22$14.87
Tuya Smart WiFi Door Sensor Door Window Open/Closed Detector Smart Home Security Alarm System WorksAliExpressSAVE $33.45
$33.45$66.90
Tuya Zigbee Smart Door Window Sensor Door Open/Closed Detector Smart Home Security Alarm System WorkAliExpress$17.99
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 PackAmazonSAVE $12.85
$19.28$32.13
ZigBee USB Door/Window Sensor Wireless Smart Magnet Door And Window Sensor Alarm Smart HomeAliExpressSAVE $0.34
$0.33$0.67
Anti-theft Alarm Door Window Wireless Burglar Alarm With Magnetic Sensor Home Safety Wireless LongerAliExpress$37.60
Splenssy Smart WiFi Door Window Sensor Alarm, Contact Wireless Door Window Magnetic Entry Detector Sensor, Wireless Sensor Door Window Burglar Alarm, Tuya APP for Home SecurityAmazon$6.49
Tyenaza Home Alarm System Metal Rolling Gate Window Door Magnetic Contacts Alarm Reed SwitchAmazon$19.99
WSDCAM 130dB Loud Door Alarm Adjustable Volume, 5 Feature Modes Door Alarms for Kids Safety Home Security Pool Safety Alzheimers Door Window Open Sensor Wireless Door Alarm with RemoteAmazon$23.29
Waytronic Infrared Motion Sensor Activated Sound Speaker Built with Microphone Recordable Voice for Shop Sale, Garage Door Alert, Greeting Visitor Door Chime, Security Reminder（Black）AmazonSAVE $2.47
$37.52$39.99
ooma Siren, Works with Smart Home Security. No Contracts and Free self-Monitor Plan. Optional Professional Monitoring, Motion, keypad, Door/Window, Water Sensor, and Garage Door Sensor.,WhiteAmazon$34.99
Ooma Motion Sensor, works with Ooma Smart Home Security. No contracts and free self-monitor plan. Optional professional monitoring, door/window, keypad, water sensor, and garage door sensor,WhiteAmazonSAVE $30.00
$119.99$149.99
SEYVUM Automatic Chicken Coop Door Camera 1080P, Automatic Chicken Coop Door Solar Power, Smart APP Control with WiFi Network Monitor, Timer Automatic Chicken Door with Alarm Drive & Anti-PinchAmazonSAVE $7.60
$6.21$13.81
Wireless Door Alarm Door Burglar Alarm System Magnetic Security Sensor Windows Open Alarms Pool DoorAliExpress$19.99
Loocam Door and Window Sensor Wireless, Mini Zigbee Door Sensor Alarm for Smart Home Security, Magnetic Door Alarm Sensor to Open/Closed Status, Audible Alarm & APP Notification, Loocam Hub RequiredAmazonSAVE $4.62
$13.87$18.49
Door Alarm Sensor, 125dB Door Alarms Window Burglar Alarm, WhiteBed Bath & Beyond$39.99
Door Chime with Phone App,WiFi Door Open Contact Sensor Alarm Chime with 600 FT Range,WiFi Door Ringer Alert for Business/Store/Home/Office When Enter (Three Sensor One Gateway)AmazonSAVE $4.01
$12.98$16.99
WiFi Door Window Sensor Detector: Wireless Security Alarm Door Sensor, Tuya Door Open Contact Sensor, Compatible with Alexa,Google Home,Siri, Smart Door Sensors for Home Business Security (1 Pack)Amazon$33.99
Door Chime with Phone App,WiFi Door Open Contact Sensor Alarm Chime with 600 FT Range,WiFi Door Ringer Alert for Business/Store/Home/Office When Enter (Two Sensor One Gateway)AmazonSAVE A$30.60
A$11.89A$42.49
TEMU 1pair 20m Simple Beam Alarm Photoelectric Infrared Sensor Detector Home Door Security SystemTemu$14.00
Mobestech Alarmas para Puertas y Door Alarm Window Chime Motion Detector Household Magnetic Door Home Motion Sensor Door Window AlarmAmazon$7.99
DSALERTS Door Stop Alarm with 120dB Loud Siren Portable Personal Security for Home & TravelAmazon$13.92
ASHATA Door Open Sensor Window Alarm Sensor, Door Magnet Detecting Distance Up to 1.37in, Transmitting Range 328ft, Magnetic Door Open Sensor for Home OfficeAmazonSAVE $2.00
$9.99$11.99
Maxcio Door Window Sensor, Door Open Detector with App Notifications, Compatible with Alexa/Google Home, Entry Detector Sensor for Home Automation Security, Requires Maxcio Zigbee GatewayAmazon$27.99
WSDCAM Glass Break Sensor Alarm 125dB Ultra-Slim Wireless Glass Break Detector Window Alarm Vibration Sensor for Home Window and Door Security - 4 PackAmazon$19.99
Alarm Door/Window Contact Sensor (2nd Gen)The Home Depot$22.66and up
GS-MT Skylink Wireless Garage Door Sensor for SkylinkNet Connected Home Alarm Security & Home Automation System and M-Series. Track and Monitor Your Garage Door Open or Closed StatusAmazon & 1 moreSAVE $98.26
$48.14$146.40
PGST Smart Life Alarm System for Home WIFI GSM Security Alarm Host with Door and Motion Sensor TuyaAliExpress$29.99
Door and Window Sensor P2 - with Native Matter Support, Open/Closed Status Monitoring and Alarm, Local Home AutomationThe Home Depot$17.95and up
Ring Alarm Door or Window Contact Sensor #4SD1SZ-0EN0 (2nd Gen) WhiteGroupon & 1 more$44.99
Replacement Door Window Sensor for Xfinity Home Security LDHD2AZW (Pack, 4)Amazon$27.99
WSDCAM Window Alarm Glass Break Sensor Alarm 125dB Ultra-Slim Glass Break Detector Anti-Theft Vibration Sensor Alarm for Home Door and Window Security - 4 Pack - BlackAmazonSAVE $2.00
$13.99$15.99
Erdiegle WiFi Door Window Alarm Sensor with App 2.4Ghz(with Timer Arm and Disarm/Time Delay) Sound Adjustable, Door Ajar Alarm, Door Open Alarm, Freezer Open Alarm for Home SecurityAmazon$24.99
SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with AlexaAmazon$24.99
Window/Door Alert SensorSwann$32.99
Window Door Alarm for Kids Personal Home Security Alarms with Chime for House, RV, Office, Business Safe (8Pack)Amazon$7.23
Door Window Sensors, Wired Door Sensor Alarm, 10Pcs Wired Door Window Sensor Magnetic Switches for Home Alarm SystemAmazonSAVE $5.16
$39.99$45.15
Swann PIR Motion Alarm Sensors 2 Pack Home Security, Door/Window/Driveway Alarm, Wireless Wi-Fi Connection, Detect Movement Up to 50ft & 110 Degree RangeWalmart$26.48
Ooma Water Sensor works with Ooma Smart Home Security No contracts and free self monitor plan Optional professional monitoring motion door window siren smoke keypad and garage door sensorAmazon$15.99
Erdiegle Door Alarm, Window Alarm, Door Chimes When Door Opening, 135db Sound with Time Delay, 4 Working Mode, Used for Apartment, Pool, Home Security, Shop Burglar AlertAmazon$14.99
WiFi Smart Door Window Sensor Alarm, Multipurpose Sensor, Contact Sensor for Home/Office Security, Wireless Door Window Open Detector, APP Remote Notification Compatible with Alexa & Google AssistantAmazon$8.99
Door Alarms for Home Security, Real-time Wireless Door Sensor, Personal Security Window and Door Alarm, WiFi Door Open Contact Sensors for Kids Safety, Works with TUYA App, Easy to Install, 1 PackAmazon$38.99
Door Window Alarm When Opened for Home Security with Remote, 6 Pcs Wireless Door Sensor Alarm for Kids Safety with Adjustable VolumeAmazonSAVE $1.30
$3.53$4.83
Mini Wireless Magnetic Sensor Door Window Alarm Entry Security Burglar Sensor Alarm System HomeAliExpress$45.99
SECRUI Door Chime with Adjustable Volume –Wireless Entry Alert with 52 Chimes – 500ft Rage Door Open Sensor Alarm for Home/Business/Office/Store – Easy Installation – LED IndicatorsAmazonSAVE $12.78
$35.21$47.99
Swann Window & Door Alert Wi-Fi SensorWalmart$45.99
Shaogax Driveway Alarm, 2.4G WiFi Wireless Doorbell Motion Sensor Alarm, Window and Door Protection, Compatible with TUYA/Smart Life Home Security SystemAmazonSAVE $0.78
$19.21$19.99
WD-MT Skylink Wireless Window and Door Sensor for SkylinkNet Connected Home Security Alarm & Home Automation System and M-SeriesWalmart$28.89
DOOR/WINDOW SENSOR MATTER APP CONTROL 2-PACKThe Home DepotSAVE $2.61
$23.50$26.11
Sabre HS-DWA2 Wireless Door And Window Alarm, Plastic, WhiteBed Bath & Beyond$99.00
Wireless WiFi Smart Home Security DIY Alarm System with Motion Detector,Notifications with app,Door/Window Sensor, Siren,Compatible with Alexa,NO Monthly FeesAmazonSAVE $6.00
$38.98$44.98
Police Security Blackout-R HeadlampWalmart
$8.08HOME SECURITY & HOME DEFENSEAmazon