Two pack. The Shelly door sensor detects and reports the opening and closing of door/windows, tilt angle, vibration, temperature and lux. The device uses 2 batteries type CR123A which are NOT included. Shelly cloud product. Make IoT simple.
Wireless - Shelly Door/Window sensor uses your home WiFi network, no additional controllers are required.
Stay safe - Shelly Door/Window is going to remind you about open windows when you’re about to leave for work, go to sleep, or when it may rain.
Highly compatible - Compatible with Android, iOS, Amazon Alexa and Google Assistant.
Door sensor - Shelly Door/Window detects and reports the opening and closing of doors and windows.
Temperature sensor - Be aware of temperature fluctuations and keep your home comfortable at any time.
Light sensor - The device has an integrated LUX sensor.
Wire free - Simply place the sensor on your door or window frame and you are all set.
Monitor remotely - Monitor you home, no matter where you are via the Shelly Cloud app and your phone.