Features: 1.WIFI MOTION SENSOR: Wifi PIR motion detector alarm, no hub required, controlled via "for Tuya Smart" or "for Smart Life" APP. The upgraded sensitive infrared sensor detects motion and sounds an audible alarm (up to 100 dB). Alerts are also pushed to your phone. 2.4 MODES: The PIR motion detector features 4 arming modes and free alarm recording, and you'll love the flexibility of the alarm modes (1. sound and light mode, 2. light only mode, 3. sound only mode, and 4. silent mode, which sends alerts to your phone only). Add schedules according to your needs, time arming, and view alarm logs anytime, anywhere with the for Tuya App. 3.DUAL IR DETECTION AND ACCURATE ALARM: for Tuya motion detector consists of upper and lower detection windows, 110 degree detection angle, 9 meters detection distance, and supports 360 degree adjustment of detection direction. Thanks to the dual infrared design, it prevents people from climbing over the sensing blind spot without triggering the alarm, and prevents false alarms for pets under 25kg or 55.1lb. 4.SMART COMPATIBILITY: The Pir motion sensor can be used with for Google home, for Siri for home automation. It can also be linked with other smart wifi devices. For example, when you open the door, the sensor will be triggered and the light will turn on automatically. 5.UPGRADE USB WIFI DETECTOR: As the smart motion sensor is a wifi 24 hours online product, the power consumption will be much higher than other sensor products, powered by USB cable, no batteries needed, just plug it in with USB cable. Specification: Item Type: Infrared Motion Sensor Alarm Material: ABS Size: Approx. 57.8x42.8x105mm or 2.28x1.69x4.13in Detection Distance:Approx. 9m or 29.5ft Detection Angle: 110 Degree Wireless Type: 2.4GHz (5G Is Not Applicable) Frequency Support: 802.11a b g n Operating Temperature: -10-50 (14F-122F) Operating Humidity: Up to 95 percent RH Anti White Light Interference: 7000lx Installation: Bracket Mount Application Environment: Indoor PackageList: 1 x Alarm 1 x Bracket 1 x Charging Cable 1 x Screw Package Note: Manual measurement please allow some error.