Smart Door/ Window Sensor

D-Link mydlink Smart Door/Window SensorThe mydlink Smart Door/Window Sensor is a discreet contact sensor that detects when a door or window is opened or closed, giving you a trigger for automating your smart home. Works with the Google Assistant, Alexa and IFTTT.Open/close detection for your doors and windows Sensor Bypass Button allows you to open doors and windows without triggering an alertTamper detection for greater peace of mindBattery-powered for unrestricted placement – no power outlet neededUp to 3 years battery life Requires a mydlink Smart Home Hub (DCS-8330LH) or Amazon Echo PlusTriggers automations with other mydlink cameras and smart plugsCompatible with the Google Assistant, Alexa, and IFTTTConnects using Zigbee technology