2 Pack Zigbee Door Sensor, Mini Smart Contact Sensor for Home Automation, Kid Safety, Compatible with SmartThings, Alexa, Home Assistant, Aeotec, Hubitat, Homey, Zigbee Hub Required

Tapo Door Sensor Starter KIT, Matter Compatible, 3X Smart Door Window Contact Sensor and 1x Smart Hub with Built-in Chime, Smart Automation, Real-Time Notification, T31 KIT

eufy Security Entry Sensor E20, Window & Door Alarm, 5-Year Battery | Dual-Side Detection, Instant Alerts, Bypass Button, 656ft open-air range, HomeBase 2/3/Mini/Pro required, No Monthly Fee

Aqara Zigbee Wireless Mini Switch, Zigbee Button Works with HomeKit Alexa | Smart Button Requires Aqara Hub, Versatile 3-Way Control Button for Smart Home Devices, Works with Google Home IFTTT

Door Window Alarm Sensors, 5 Pack, 125dB, Volume Control | 125dB wireless sensors alert when doors or windows open, with adjustable volume, easy installation and long battery life

THIRDREALITY Zigbee Contact Sensor, Door and Window Monitor, Home Automation, Works with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required

Aqara Door and Window Sensor P2, Contact Sensor with Remote Alarm | Matter Over Thread, Requires 2-in-1 Matter Controller & Thread Border Router, Supports Apple Home, Alexa

eufy Security Entry Sensor 6-Pack, Wireless Door and Window Sensors | Dual-side Detection, Convenient Bypass Button, Requires a US Version of HomeBase 2, 3, Mini, or Pro

Aqara Zigbee Door and Window Sensor 3 Pack & Zigbee Hub Kits, Wireless Mini Contact Sensor, Home Automation, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

THIRDREALITY Zigbee Motion Sensor, Pet Friendly, Compatible with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Built-in Zigbee Hub

WiFi Door Sensor Chime, Smart Door Open Alert Window Sensor | For Business/Home/Kids Safety, Window Contact Alarm with Free App Notification, 500ft Range, 32 Melodies, 5 Volume Levels

THIRDREALITY Zigbee Temperature and Humidity Sensor Lite,Smart Thermometer and Hygrometer, Hub Required,Compatible with Echo Devices with Zigbee Hub Built-in,Home Assistant,SmartThings,Homey,Hubitat

Door Chime When Door Opens, Door Opened Alarm for Home/Business Entering | 1-Sensor + 1-Receiver with 500FT Range|58 Chimes|5-Volume Level, Bedroom Entry Alert for Kids/Toddler/Dementia/Elderly Safety

4 in 1 Door Chime When Door Opens Alarm Sensor for Kids Home and Business | 600FT, Plug & Play No Wiring, Pre-Paired, 58 Chimes, Kids & Elderly Safety, Store Entry Alert, Expandable to 58 Set

Home Security System 9-Piece Work with Alexa & Google No Monthly Fees,WiFi+4G Mobile App Control with Instant Alerts and Auto Alarm Dial,Door/Window Sensors+Motion Detectors+Remote,24/7 Monitoring

Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa

Smart Door Sensor: WiFi Door and Window Sensor, Wireless Design, Instant Alerts, Door Open Contact Sensor for Home Security & Smart Home Automation, Compatible with Alexa Google Assistant(3pack)

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System

Aqara - T1 Door and Window Sensor- Requires Hub product, Supports Apple HomeKit, Alexa, Google, SmartThings - White

4 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 Security

4 Pack SONOFF Zigbee Wireless Door Window Sensor, Home Window Door Contact Alarm

TECKNET 2.4G WiFi Wireless Window Door Alarm Sensor & Chime with App | Door Alarms When Opened, Wireless Window Sensor, Home Security Systems, Ideal for Kids Safety, Pool, Shed, Garage, 2 Packs

Swann Wireless Window/Door Alert Sensor. Easy Installation (Permanent or Temporary), Wi-Fi Connected, Battery Powered, No Hub Required, Get Alerts to Your Smartphone and Control Sensor Using The App

WiFi Door Chime, SanJie Door Alarm Sensor with Phone Notifications for Kids Safety & Dementia Care, Door Open Alert for Home Security and Business Use, 20 Chimes, 5 Volume Levels, 2.4GHz Only

Smart WiFi Door/Window Sensor | Tuya Smart Alarm, Wireless Entry Detector with Real-Time Alerts, Compatible with Alexa/Google Home, No Hub Required (1Pack)

WiFi Smart Motion Sensor: Wireless PIR Motion Detector for Home Security, Infrared Motion Sensor with App Notification Alert, Support Voice Command Via Alexa (1-Pack)

WiFi Door Sensor: Smart Door Open/Closed Detectors, Wireless Window Sensor with App Notification Alert, Contact Sensor for Home Security, Compatible with Alexa Google Assistant (1pack)

WiFi Motion Sensor, Smart Motion Detector for Home Security, Wireless Motion Sensor App Remote Monitor, Voice Command Compatible with Alexa. 1 Pack

ecobee Comfort and Security Bundle, Smart Thermostat Premium & SmartSensor | Built-in Alexa and Siri, Doorbell live view, Smoke alarm detection, Radar occupancy sensor, open and close notifications

X-Sense Smart Home Security System, Wireless Security System 5-Piece Set, Supports Mobile App Alerts, Compatible with Alexa, Includes 1 Base Station, 2 Door Sensors, 1 Motion Sensor, 1 Keypad, AS05

YoLink Home Security Kit: SpeakerHub, 2 Door Sensors, Motion & AlarmFob | Custom Spoken Alerts, Door and Motion Monitoring, Long-Range LoRa, App Control, 2.4 GHz Wi-Fi Required

Alarm System with Phone APP Alert, DIY WiFi Home Security Alarm System, 12pcs Kit Motion Detector, Door Sensor, Remote Control, Siren, Compatible with Alexa Google for Home, Villa, and Children

WiFi Alarm System for Home Security, 120dB Wireless Alarm Security System with Free Notification APP Control and Motion Sensor Siren, Remote Control for Shed Garage

ecobee - SmartSensor 2-Pack - Temperature & Occupancy Detection, Comfort, Security, Energy Savings - White

Tapo Door Sensor Starter KIT, Matter Compatible, 3X Smart Door Window Contact Sensor and 1x Smart Hub with Built-in Chime, Smart Automation, Real-Time Notification, T31 KIT

eufy Security Entry Sensor E20, Window & Door Alarm, 5-Year Battery | Dual-Side Detection, Instant Alerts, Bypass Button, 656ft open-air range, HomeBase 2/3/Mini/Pro required, No Monthly Fee

Aqara Zigbee Wireless Mini Switch, Zigbee Button Works with HomeKit Alexa | Smart Button Requires Aqara Hub, Versatile 3-Way Control Button for Smart Home Devices, Works with Google Home IFTTT

Door Window Alarm Sensors, 5 Pack, 125dB, Volume Control | 125dB wireless sensors alert when doors or windows open, with adjustable volume, easy installation and long battery life

THIRDREALITY Zigbee Contact Sensor, Door and Window Monitor, Home Automation, Works with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required

Aqara Door and Window Sensor P2, Contact Sensor with Remote Alarm | Matter Over Thread, Requires 2-in-1 Matter Controller & Thread Border Router, Supports Apple Home, Alexa

eufy Security Entry Sensor 6-Pack, Wireless Door and Window Sensors | Dual-side Detection, Convenient Bypass Button, Requires a US Version of HomeBase 2, 3, Mini, or Pro

Aqara Zigbee Door and Window Sensor 3 Pack & Zigbee Hub Kits, Wireless Mini Contact Sensor, Home Automation, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

THIRDREALITY Zigbee Motion Sensor, Pet Friendly, Compatible with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Built-in Zigbee Hub

WiFi Door Sensor Chime, Smart Door Open Alert Window Sensor | For Business/Home/Kids Safety, Window Contact Alarm with Free App Notification, 500ft Range, 32 Melodies, 5 Volume Levels

THIRDREALITY Zigbee Temperature and Humidity Sensor Lite,Smart Thermometer and Hygrometer, Hub Required,Compatible with Echo Devices with Zigbee Hub Built-in,Home Assistant,SmartThings,Homey,Hubitat

Door Chime When Door Opens, Door Opened Alarm for Home/Business Entering | 1-Sensor + 1-Receiver with 500FT Range|58 Chimes|5-Volume Level, Bedroom Entry Alert for Kids/Toddler/Dementia/Elderly Safety

4 in 1 Door Chime When Door Opens Alarm Sensor for Kids Home and Business | 600FT, Plug & Play No Wiring, Pre-Paired, 58 Chimes, Kids & Elderly Safety, Store Entry Alert, Expandable to 58 Set

Home Security System 9-Piece Work with Alexa & Google No Monthly Fees,WiFi+4G Mobile App Control with Instant Alerts and Auto Alarm Dial,Door/Window Sensors+Motion Detectors+Remote,24/7 Monitoring

Smart PIR Motion Sensor: WiFi Motion Detector with App Notification Alerts, Wireless Contact Sensor for Home Security and Smart Home Automation, No Hub Required, Compatible with Alexa

Smart Door Sensor: WiFi Door and Window Sensor, Wireless Design, Instant Alerts, Door Open Contact Sensor for Home Security & Smart Home Automation, Compatible with Alexa Google Assistant(3pack)

Entry Sensor - Window and Door Protection - Compatible with Gen 3 Home Security System

Aqara - T1 Door and Window Sensor- Requires Hub product, Supports Apple HomeKit, Alexa, Google, SmartThings - White

4 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 Security

4 Pack SONOFF Zigbee Wireless Door Window Sensor, Home Window Door Contact Alarm

TECKNET 2.4G WiFi Wireless Window Door Alarm Sensor & Chime with App | Door Alarms When Opened, Wireless Window Sensor, Home Security Systems, Ideal for Kids Safety, Pool, Shed, Garage, 2 Packs

Swann Wireless Window/Door Alert Sensor. Easy Installation (Permanent or Temporary), Wi-Fi Connected, Battery Powered, No Hub Required, Get Alerts to Your Smartphone and Control Sensor Using The App

WiFi Door Chime, SanJie Door Alarm Sensor with Phone Notifications for Kids Safety & Dementia Care, Door Open Alert for Home Security and Business Use, 20 Chimes, 5 Volume Levels, 2.4GHz Only

Smart WiFi Door/Window Sensor | Tuya Smart Alarm, Wireless Entry Detector with Real-Time Alerts, Compatible with Alexa/Google Home, No Hub Required (1Pack)

WiFi Smart Motion Sensor: Wireless PIR Motion Detector for Home Security, Infrared Motion Sensor with App Notification Alert, Support Voice Command Via Alexa (1-Pack)

WiFi Door Sensor: Smart Door Open/Closed Detectors, Wireless Window Sensor with App Notification Alert, Contact Sensor for Home Security, Compatible with Alexa Google Assistant (1pack)

WiFi Motion Sensor, Smart Motion Detector for Home Security, Wireless Motion Sensor App Remote Monitor, Voice Command Compatible with Alexa. 1 Pack

ecobee Comfort and Security Bundle, Smart Thermostat Premium & SmartSensor | Built-in Alexa and Siri, Doorbell live view, Smoke alarm detection, Radar occupancy sensor, open and close notifications

X-Sense Smart Home Security System, Wireless Security System 5-Piece Set, Supports Mobile App Alerts, Compatible with Alexa, Includes 1 Base Station, 2 Door Sensors, 1 Motion Sensor, 1 Keypad, AS05

YoLink Home Security Kit: SpeakerHub, 2 Door Sensors, Motion & AlarmFob | Custom Spoken Alerts, Door and Motion Monitoring, Long-Range LoRa, App Control, 2.4 GHz Wi-Fi Required

Alarm System with Phone APP Alert, DIY WiFi Home Security Alarm System, 12pcs Kit Motion Detector, Door Sensor, Remote Control, Siren, Compatible with Alexa Google for Home, Villa, and Children

WiFi Alarm System for Home Security, 120dB Wireless Alarm Security System with Free Notification APP Control and Motion Sensor Siren, Remote Control for Shed Garage

ecobee - SmartSensor 2-Pack - Temperature & Occupancy Detection, Comfort, Security, Energy Savings - White