Wireless Contact Sensor For Home Automation And Security, Compatible With Alexa, WIFI MOTION SENSOR: Wireless motion sensor with 128detection angle, 6-40 feet detection distance, without any hub, realize real-time monitoring day and night. Comes with 2*AAA batteries FREE APP NOTIFICATIONS ALARM HISTORY DATA: Smart motion sensor controlled by Tuya Smart/Smart Life App. When a movement is detected or when the battery is running low, a notification alert is automatically sent to the App, and the alarm history record can also be inquired for real-time control of home safety. CREATE ROUTINES: Using the Tuya Smart/Smart Life app, create your own routines that are triggered when motion is detected. Such as turning on the smart lights when motion is detected. UPGRADED MOTION DETECTOR: This Tuya motion sensor with the most advanced motion detection function and uses the latest infrared detection technology and intelligent analysis algorithms, which can effectively distinguish interference signals and human movement signals to prevent false alarms. EASY INSTALLATION AFTER-SALES: Small and portable without taking up space.Using the film sticker or screws, WiFi pir motion sensor can be installed everywhere you like, such as garages, safes, corridors, doorways, shops, rooms. Gaoducash promises an industry-leading 24-month-warranty