Note:ZigBee PIR Motion Detector. It is must works with Tuya ZigBee Hub. Or ZigBee PIR can add to Alexa APP directly   - Option 1: WiFi Version. It can be work STANDALONE   - Option 2: ZigBee Version. MUST works with Tuya ZigBee Hub. Or Add to Alexa APP directly. It is can set routine directly via APP.   Like: When motion detected, alexa can say" you have a visitor" or cutomized the voice.   WIFI Version can not set this routine via alexa. Because WIFI version add to alexa via smart life app. White ZIGBEE VERSION add to ALEXA APP directly.   If you want to experience more funtion on ALEXA, please BUY ZIGBEE VERSION ONE ( BUT YOU ALEXA DEVICE MUST SUPPORT ZIGBEE PROTOCOL)   Tuya WIFI ZigBee Motion Sensor Detector APP Remote Control   Simple download APP "Smart Life/Tuya Smart" in App Store or Google Play add the device to detect the human body movement. Home security in your hand all the time.   Advanced WiFi ZigBee Motion Sensor   PIR detects human body or animals that are moving, 120° detection angle, 5m detection distance, can achieve real-time monitoring day or night.   Emergency Alert Push Function   When there is movement detected, the alert notifications will be pushed to your phone, be aware of what's happening at home even when you're away.   History Records Tracking   You can track the history of sensor activities.   Alexa Tuya WIFI ZigBee Motion Sensor Detector    Works with Alexa to Create a Routine   Strong Performance & Ultralong Standby Time   Long transmission distance, high sensitivity, and strong network signal. Ultra-long standby time. Powered by 3pcs AAA batteries(NOT Built-In), can last for 12 months.   Tuya WIFI ZigBee Motion Sensor Detector creat SMART SCENE   - WiFi version support 2 state:    Motion Detector;    No One   - ZigBee version support 4 state:    Motion Detection;    No Person;    "Motion Detection"Duration;   "No Person" Duration   Detail, please check the video or inquire our sales person for more info.   Tuya WIFI ZigBee Motion Sensor Detector Features:   - Power Supply: 3 x AAA ( NOT Built-In )   - Standby Current: 20uA   - Standby Time: 12 months (trigger 10 times/day)   - Detection Angle: 120°   - Detection Distance: 5m   - Wireless Type: 2.4GHz Wi-Fi or ZigBee   - Wi-Fi Connection Range: 45m(open area)   - APP: Smart Life/Tuya Smart   - Mobile OS Required: Android 4.1/iOS 9.0 or later   - Material: Superior ABS    - Operating Temperature: -20~60   - Operating Humidity: 10% ~90%   ZigBee PIR Motion Detector MUST ADD under Tuya ZigBee HUB or Add directly to ALEXA APP   Alexa WiFi ZigBee Motion Sensor Detector   Support to works with Alexa APP to creat a ROUTINE   Creat Smart Scene   Support creat smart scene with other wifi wifi products to make home smarter