Broadlink Smart Home Fastcon Door Sensor, Wireless Security for Automation,Works with Alexa, GW4C Hub Required

【Easy to Install】Download the latest BroadLink FastCon App. Follow the instructions to set up and customize your settings in seconds. No more complex tools for installation, just use the stickers in the package, firm and durable. 【Remote Real-Time Alarms】Set an alert notification for your home. When the door/window is opened or the sensor is dismantled, you will immediately receive an alarm signal from your phone. (Requires a BroadLink GW4C gateway/hub) 【Automate Your Home】Set automation in the App and link it with the sensor. Simply open the door and automatically activate your welcome-home scene (ex. have your entryway lights on). 【Compatible with Alexa & Google】Works with Alexa and Google. Just ask to check the current state of your door/window. Also can be used as a trigger for Alexa Routines. (Requires a BroadLink GW4C gateway/hub) 【Low Battery Warning】The Door Sensor needs 2pcs AAA Batteries (included). When the battery level is low, you will receive a message via the App. No need to worry about running out of batteries anymore., Manufacturer: Hangzhou BroadLink Technology Co., Ltd.