$25.97
Wyze Home Security System Wireless Keypad,WhiteAmazon$24.69
Xodus Innovations HS4317B Battery Powered Wireless Security Door Alarm with Key Pad and Chime or Alarm Mode, WhiteAmazon$16.99
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, 2 PacksAmazon$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$39.99
Door Window Alarm for Home Security with Remote, 6 Pcs Wireless Door Sensor Alarm with Adjustable Volume for Home Kids SafetyAmazon$19.98
Homezone Wifi Smart Wireless Window/Door Alarm SensorWalmart$31.99
YisTech Caregiver Pager Door Alarms for Dementia Patients/Kids Safety/Home Security,Wireless Door Alarm Sensor for Elderly/Business/Home/Store (Three Sensor One Receiver)Amazon$29.99
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 (One Sensor One Gateway)Amazon$49.99
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$6.49
Tyenaza Home Alarm System Metal Rolling Gate Window Door Magnetic Contacts Alarm Reed SwitchAmazon$37.88
Door Alarm Sensor Window Alarms for Home Security Kids Burglar Safety SystemAmazon$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$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,WhiteAmazon$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 $4.00
$12.99$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$32.99
YisTech Caregiver Pager WiFi Door Alarms for Dementia Patients with Phone App,WiFi Smart Door Sensor Alarm for Kid Safety/Home Security/Elderly/Business/Store/Mailbox(2 Sensor 1 Gateway)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)Amazon$12.73
Mobestech Alarmas para Puertas y Door Alarm Window Chime Motion Detector Household Magnetic Door Home Motion Sensor Door Window AlarmAmazon$33.99
EverNary Window Vibration Alarm,125dB Loud Ultra-Slim Anti-Theft Alarm for Door and Window Glass Break Sensor Alert with Adjustable Sensitivity (5 PCS)Amazon$13.47
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 $3.00
$11.99$14.99
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$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, Hub RequiredAmazon$19.99
Alarm Door/Window Contact Sensor (2nd Gen)The Home Depot$14.99and 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 more$22.99
Replacement Door Window Sensor for Xfinity Home Security LDHD2AZW (Pack, 2)Amazon$16.86
Door Window Sensor: Smart Tuya Door Sensor Free App Real-time Alerts, Wireless WiFi Window Contact Sensor for Home Security & Smart Home Automation, Support for Alexa Google Assistant (1-Pack)Amazon$39.95
Eve Door & Window Wireless Contact Sensor (Matter) 10038002B&H Photo$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 - BlackAmazon$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$83.94
Security Alarm Will Sound If Door is Opened Notice LabelWayfair$20.99
Door Window Alarm, 90DB Door Alarms for Kids Safety, Wireless Sensor Door Window Burglar Alarm-Window Pool Alarms for Home, 15 PackAmazonSAVE $0.75
$12.50$13.25
Xfinity Door Window Sensor Home Security XHD2-LD (Latest Generation 2023)Amazon$32.99
Window Door Alarm for Kids Personal Home Security Alarms with Chime for House, RV, Office, Business Safe (8Pack)Amazon$12.05
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$149.99
NyPots Automatic Chicken Coop Door with Camera 1080P, Automatic Chicken Coop Door Solar Power, True APP Control with WiFi Network Monitor, Timer Automatic Chicken Door with Alarm Drive & Anti-PinchAmazonSAVE $3.22
$26.77$29.99
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 PackAmazonSAVE $9.24
$36.75$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$39.99
Shaogax Driveway Alarm, 2.4G WiFi Wireless Doorbell Motion Sensor Alarm, Window and Door Protection, Compatible with TUYA/Smart Life Home Security SystemAmazonSAVE $5.00
$39.99$44.99
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/OfficeAmazonSAVE $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$17.99
eMylo WiFi Door Alarm, Tuya Smart Window Alarm Sensor with Light Alarm, Timing, APP Remote Control, Door Alarms for Dementia PatientsAmazon$12.59
SONOFF DW2 Wi-Fi Wireless Door Window Sensor,APP Alert for Home Automation Wireless Alarm Security System, Compatible with IFTTT, No Gateway Required.Amazon$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$49.95
Eve Systems Door & Window Wireless Contact Sensor, WhiteKohl's$11.98
SABRE White Door Sensor Alarm - 110dB Audible Alarm, Portable and User-Friendly, Ideal for Home Security, Indoor Use | HS-DHALowe's$88.96
Wireless Indoor Security Window and Door Motion Sensor Alarm White in 4-Pack for Home, Garage, Apartment and MoreThe Home Depot$109.95
Eve Door & Window Wireless Contact Sensor (Matter, 3-Pack) 10038022B&H Photo$19.99
Globe Electric 91009253 Heath Zenith Plastic Wireless Battery-Operated Door/Window Sensor White Electrical and Electronics Security Systems SensorsBuild.com$24.09
WiFi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, Compatible With Alexa, App ControlThe Home Depot$10.91
10pcs Wired Door Window Sensor Magnetic Reed Switch NC Recessed Wired Security Window Door Sensor Alarm for Home Alarm Security SystemAmazon