【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. 【Automate Your Home】As part of the BroadLink ecosystem, the sensors work with other BroadLink Fastcon smart devices. You can set automation in the App and use the sensors to trigger different scenes. For example, have your entryway lights on when you open the door or turn off lights when there is no person. 【Protection for Break-in & Emergencies】Set an alert notification for your home. When the sensor is triggered (ex. the door is opened or an unexpected guest is detected) or dismantled, you will immediately receive an alarm signal from your phone. (Requires a BroadLink GW4C gateway/hub) 【Works with Alexa & Google】 Alexa can alert you when the sensor is triggered. (ex. “Someone enters the hallway!") Or you can just ask to check the current state. (ex. “Alexa, what’s the temperature of the living room?" ) The sensors also can be used as triggers for Alexa Routines. (Requires a BroadLink GW4C gateway/hub) 【Data Record】You can acquire the current and historical status of devices in the App from anywhere. When was the last time someone opened the door and for how long? What is the current temperature and humidity of the bedroom? Put whole-home security at your fingertips. (Requires a BroadLink GW4C gateway/hub), Weight: 0.46076612758 pounds, Manufacturer: Hangzhou BroadLink Technology Co., Ltd.