Product Features Wi-Fi Bluetooth Dual Mode: Connect to the network faster. Network connection speed is 2x faster than Wi-Fi only. Bluetooth is only used for network signal connection; Bluetooth cannot be used alone. Wi-Fi Bluetooth is more stable. Low Voltage Reminder: When the battery level is low, it will automatically remind you to change the batteries. Never worry about running out of battery. Real-time Remote Control: Wherever you are, once PIR detects people or animals moving, you'll receive a push notification on your smartphone via the Tuya Smart Life App. Keep your home safe at all times. When motion is detected, alert messages will be pushed to your phone immediately, allowing you to stay informed about what's happening at home even when you're away. Light Detection: It can assess the brightness of indoor light, such as turning on a night light when it's dark and someone passes by. Intelligent Linking with More Sensors: When you get up at night, PIR detects your movement, and the light will turn on automatically. Requires matching with corresponding smart products. Discover more smart scenes with Tuya smart devices to satisfy yourself to a great extent. You can even track the history of sensor activities with the app. Wide Application for Whole House Security: 6m detection distance, 360° detection angle, adjustable fixed mounting with double-sided tape or use with the bracket plate to fix anywhere you like to monitor your entire home security. Third-Party Voice Support: This sensor supports Amazon Alexa and Google Home Assistant. Two Power Supply Methods: Plug in the USB cable for use or battery power supply. One of two choices. Specifications USB input voltage: DC5V 2A Battery: DC3V LR03*2 Standby current: 55uA Alarm current: 135mA Low voltage notification: 2.4V Wi-Fi: 802.11b/g/n Detection distance: 6M Detection angle: 360° ceiling installation Installation method: Ceiling, wall Working temperature: -10~50℃ Working humidity: ≤95%RH Size: 61*34mm