$4.31
Window Door Sensor for All 433mhz Wireless Home Alarm Security Smart Gap Sensor To Detect Open DoorWish$13.99
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$21.36
Entry Sensor (Pack of 2) - TUYA WiFi Window and Door Protection, Real-time Wireless Door Sensor, with TUYA AppThe Home Depot$24.99
Geeni Window and Door Sensor Alarm - 2 Pack Wi-Fi Controlled, Battery-Powered Smart Security Door Alarm Window Sensor for Home, Garage, Office, Instant Alerts, Siren, Alexa, Google Home CompatibleAmazon$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$13.99
KERUI Home Security System 110dB Wireless Burglar Alarm System with Siren, Remote Control, and Door Alarm Sensor. Perfect for House Alarm Systems, and Door Alarms for Home (Door Magnetic Alarm)AmazonSAVE $0.26
$3.87$4.13
Smart House Wireless Home Office Window Door Entry Burglar Security Alarm Warning System SensorWish$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 PackAmazonSAVE $13.31
$60.67$73.98
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 IndicatorsAmazon$23.99
KERUI WiFi Horn Host Loud 115db,Can't Work Alone,Work with Door Sensor,Motion Sensor,Remote Control,as a Home Alarm System,Only Support 2.4G WiFi,BlackAmazon$283.94
KJB Security Products DD12051 iProtect RF Wireless Signal Detector Wand DD12051B&H PhotoSAVE $8.00
$16.99$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$24.98
Wyze Home Security System Wireless Keypad,WhiteAmazon$24.99
WiFi Door Sensor Alarm: Smart Door Sensor with 90db Real-time Alarm, App Notification, Wireless Door Open Contact Sensor for Home Security Burglar Alert Compatible with Alexa Google Home (2pack)Amazon$25.75
Wireless Door/Window Sensor. The door/window sensor requires a base unit to operate.The Home DepotSAVE $48.22
$36.38$84.60
Retekess WiFi Window Door Sensor Home Security Alarm System TH011 Receiver 2 TH015 Door Detectors APP Remote Control For HomeAliExpress$20.99
YisTech Caregiver Pager Door Alarms for Dementia Patients/Kids Safety/Home Security,Door Sensor Alarm for Elderly/Business/Home/Store/Mailbox(One Sensor One Receiver)Amazon$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 $5.00
$14.99$19.99
Maxcio Door Window Sensor 3 Pack, Door Open Detector with App Notifications, Compatible with Alexa/Google Home, Entry Detector Sensor for Home Automation Security, Requires Maxcio Zigbee GatewayAmazonSAVE $12.43
$9.37$21.80
SONOFF SNZB-04P Zigbee Monitoring Door Window Sensor Home Security Tamper Alert Notification Local Smart Scene Alexa Google HomeAliExpressSAVE $25.50
$13.38$38.88
Elecpow Wireless Door Window Vibration Sensor Alarm 4PCS/8PCS 125dB Glass Break Sensor Home SecurityAliExpress$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, Black)Amazon$14.95and up
Ring Alarm Door or Window Contact Sensor #4SD1SZ-0EN0 (2nd Gen) WhiteGroupon & 2 more$19.98
Wireless Door Alarms When Opened with Remote, Satisure Door Security Sensor Chime Window Alarm Pool Alarm Sliding Door Alarm for Kids Safety, Home/Garage/Apartment Security (2 Pack, White)Amazon$9.79
CAXUSD Door and Window Alarm Window Alarms Door Sensor Alarm Window and Door Alarms for Home Window Security Alarm Door Alarms for Home Security Door Security Alarm Grey AbsAmazon$39.98
Xfinity Door Window Sensor Home Security XHS2-UE (3-Pack)Amazon$45.02
2.4in 1080P Intelligent Electric Door Bell Digital Peephole Security Door Viewer with Infrared Night Scene, Humanized FIFO Design, and 32G TF Memory Card.AmazonSAVE $12.33
$9.96$22.29
1pc Adjustable Volume Battery Operated Wireless Door And Window Alarms With Remote, For Home Security Loud, Door Chimes For Safety, Window Open Alarm Sensor With DelayTemu$24.21and up
Skylink GS-MT Wireless Garage Door Sensor for SkylinkNet Home Alarm and M-Series Security SystemWalmart & 1 more$44.49
Skil-Care Door/Window Alarm with Magnetic Cord | CVSCVS Pharmacy$29.99
Door and Window Sensor P2 - with Native Matter Support, Open/Closed Status Monitoring and Alarm, Local Home AutomationThe Home Depot$44.99
Replacement Door Window Sensor for Xfinity Home Security LDHD2AZW (Pack, 4)Amazon$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 $5.50
$4.49$9.99
Secure Your Home Or Apartment Anywhere With This Portable Door Stop Alarm!Temu$325.99
KJB Security Products DD12051 RF Wireless Signal Detector WandAdorama$24.09
WiFi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, Compatible With Alexa, App ControlThe Home DepotSAVE $2.00
$36.99$38.99
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)Amazon$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$129.99
Automatic Chicken Coop Door Solar Powered Chicken Door Opener with Timer Sensor Electric,Safe Anti-Pinch Function Chicken House DoorAmazon$19.21
Wireless Window and Door Sensor for Net Connected Home Security Alarm & Home Automation SystemThe Home Depot$59.99
Olideauto Wireless Rain Sensor Workable with OS1003DC Series Smart WiFi Automatic Window OpenerAmazon$2.00
Aqara - P2 Door and Window Sensor- Matter Natively Support Need Matter Border Router Remote Alarm and Local Automation - WhiteFlexShopper$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$39.59
Monoprice 700 Door/Window Sensor | Longer Wireless Range, Burglar Alert, Easy Installation, Ideal for Home, Garage, Apartment - Z-Wave Plus SeriesAmazon$19.98
Wireless Door/Window Sensor, Powered by Hubspace (2-Pack)The Home Depot$45.99
NGW-1pc LDS02 LoRaWAN Door & Window Sensor Alarm - US915MHz, Smart Home, Wireless, OTAA, Home SecurityAmazon$26.99
Portable Door Chime,Portable Door Open Contact Sensor Alarm Chime with 600 FT Range,Portable Door Ringer Alert for Business/Store/Home/Office When Enter (Two Sensor One Battery Receiver)Amazon$39.08
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$6.49
Tyenaza Home Alarm System Metal Rolling Gate Window Door Magnetic Contacts Alarm Reed SwitchAmazon$10.98
Door Window Sensors, Wired Door Sensor Alarm, 10Pcs Wired Door Window Sensor Magnetic Switches for Home Alarm SystemAmazonSAVE $2.00
$7.99$9.99
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$6.69
Wifi Wireless Door Window Sensor Open / Closed Detectors E-WeLink APP Alert Notification Smart Home Security AlarmWish$9.99
Jemay WiFi Door Alarm Sensor, Real-time Door Sensor Detector, Smart Window and Door Alarm Work with Tuya APP,Door Open Contact Sensor for Home Security and Burglar AlertAmazonSAVE $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-SeriesWalmartSAVE $5.00
$29.95$34.95
Wireless Window/Door Exit SensorConcord Health Supply$24.95
Centralite by Ezlo Micro Door and Window Sensor - Personal and Home Security - Wirelessly Notify Users of Arrivals and Departures - Works with ZigbeeAmazon$21.49
Heyiarbeit 10Pcs NC Recessed Door Sensor Wired Security Window Contact Alarm Magnetic Reed Switch for Home Security HC-34(White)Amazon$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 AlertAmazonSAVE $14.70
$8.99$23.69
Tishric Aw201 Wifi Door Sensor Alarm Smart Home Automation Security Protection Compatible With Alexa Home AppTemu$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)Amazon
$4.31Window Door Sensor for All 433mhz Wireless Home Alarm Security Smart Gap Sensor To Detect Open DoorWish