Door/Window Sensor
![Door/Window Sensor](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Hero%20@1920.png)
Door/Window Sensor
$20.00
Help protect your home's accessible entry points as well as sensitive areas like medicine cabinets with these wireless sensors.
Easily install it yourself or choose to have our pros install it.
Requirements: Requires pro monitoring plan starting at $29.99/mo. Requires ADT Smart Home Hub and ADT+ app to monitor and control smart home security system. Wi-Fi and Bluetooth also required for functionality.
![ADT Base](/content/dam/adt7/pages/phoenix/adt-base-small-pdp-hero.png)
- Multi-use flexibility: Also place on drawers and cabinets (Convenience mode)
- Tampering alert: Get a notification on the ADT+ app if device is tampered with
- Automation ready: Trigger smart home automations like turning lights on in a room or hallway
- Indoor use only
- LED indicators
- Max gap allowed: 0.5 in (12.7 mm)
- Tamper protected: Yes
- Frequency: 1.9 GHz (DECT ULE)
- Encryption: 128-bit AES
- Power requirements: 3v CR2 Battery, Qty 1 (Great Power or Lisun CR2)
- Operating temperature range: 32 °F to 131 °F (0 °C to 55 °C)
- Relative humidity: 5-95 % non-condensing
- Dimensions: Sensor: 2.99" x 0.93" x 0.87" (75.9mm x 23.5mm x 22mm), Magnet: 1.67” x 0.59“ x 0.52” (42.3mm x 15mm x 13.2mm)
- Approval listing: FCC, Conforms to UL std 634
![ADT customer standing next to her window that has a ADT Door/Window Sensor installed ADT customer standing next to her window that has a ADT Door/Window Sensor installed](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M1%401920.png)
![ADT customer standing next to her window that has a ADT Door/Window Sensor installed ADT customer standing next to her window that has a ADT Door/Window Sensor installed](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M1%40375.png)
Safe and sound
Safe and sound
Keep yourself and your loved ones safer with sensors that know when a door or window is opened.
![ADT Door/Window Sensor on a dresser ADT Door/Window Sensor on a dresser](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M2%401920.png)
![ADT Door/Window Sensor on a dresser ADT Door/Window Sensor on a dresser](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M2%40375.png)
More than doors
More than doors
Sensors can be used to monitor cabinets and drawers and deliver added security for jewelry, cash and other items, with flexible alarm settings to notify authorities or only sound an alarm locally.
![Hand holding an phone that displays ADT mobile alerts Hand holding an phone that displays ADT mobile alerts](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M3%401920.png)
![Hand holding an phone that displays ADT mobile alerts Hand holding an phone that displays ADT mobile alerts](/content/dam/adt7/pages/phoenix/m3-pdps/door-window-sensor/DoorWindowSensor-Quad-M3%40375.png)
Mobile alerts
Mobile alerts
With the ADT+ app, you'll get instant notifications whenever a sensor is opened, a battery is low or it’s tampered with.
What's in the box
What's in the box
- Door/Window Sensor
- 1 replaceable CR2 battery
- Mounting hardware
- User guide
![ADT customer getting their ADT package delivered ADT customer getting their ADT package delivered](/content/dam/adt7/pages/phoenix/ssu-pdp/google-nest-thermostat/ADT-box-d.png)
Complete your ADT system with these products
Complete your ADT system with these products
Get the ADT
Advantage
![Someone disarming their home with the ADT app Someone disarming their home with the ADT app](/content/dam/adt7/pages/phoenix/m3-pdps/adt-app-d.png)
![Someone disarming their home with the ADT app Someone disarming their home with the ADT app](/content/dam/adt7/pages/phoenix/m3-pdps/adt-app-m.png)
Single-app access
with ADT+
Access your Google Nest cameras and ADT security and smart devices all in one spot, from virtually anywhere, anytime.
![ADT customer service rep answering calls ADT customer service rep answering calls](/content/dam/adt7/pages/phoenix/m3-pdps/adt-customer-service-d.png)
![ADT customer service rep answering calls ADT customer service rep answering calls](/content/dam/adt7/pages/phoenix/m3-pdps/adt-customer-service-m.png)
Live remote
assistance
Need support or device setup help? Just schedule a time to meet with one of our trained ADT Remote Assistance specialists to get step-by-step help.
![Couple in the kitchen with their ADT device Couple in the kitchen with their ADT device](/content/dam/adt7/pages/phoenix/m3-pdps/adt-couple-kitchen-d.png)
![Couple in the kitchen with their ADT device Couple in the kitchen with their ADT device](/content/dam/adt7/pages/phoenix/m3-pdps/adt-couple-kitchen-m.png)
Grows and goes
with you
Easily add new devices to your ADT system anytime, and just as easily take it all with you if you move.
![ADT alert on the app ADT alert on the app](/content/dam/adt7/pages/phoenix/m3-pdps/adt-alert-d.png)
![ADT alert on the app ADT alert on the app](/content/dam/adt7/pages/phoenix/m3-pdps/adt-alert-m.png)
24/7
Monitoring
Award-winning* ADT System Monitoring and Response Technology lets you quickly verify an alarm for faster police response†.
† Vs. Unverified alarms.