Broadlink BestCon DS2 Door Sensor

Features:
* The door sensor DS2 must work with Smart Sensor Hub MGW1. It can work with gateway hub and multi sensor for elderly care. Gateway supports Alexa, Google Home, IFTTT.
* Keep you informed anytime anywhere: You will get notifications when no one is active or the door is kept closed for long time, or when temperature is too high in the room after connecting with temperature humidity sensor.
* Know Whether Home is Safe: The gateway hub will send you a notification immediately if someone is detected to open your door or window.
* Ultra-low power magnetic dedicated microprocessor.
* Supports wireless frequency of 433.2MHz.