WIFI MOTION SENSOR: Wifi PIR motion detector alarm, No hub required, via "Tuya Smart" or "Smart Life" APP to control. The Upgraded sensitive infrared sensor detects motion and emits a audible alarm (up to 110 dB). At the same time, an alert be pushed to your phone. PIR MOTION DETECTOR WITH 4 ARMING MODES & FREE ALARM RECORDS: You like the flexibility in the alarm modes (Sound & Light Mode Only Light Mode Only Sound Mode Mute mode--only sent alerts to your mobile phone). Add schedule according to your needs, TIMED ARMING and DISARMING and view the alarm records through the Tuya App any time anywhere. The alarm can protect your property well and is your first home security system. DUAL INFRARED DETECTION & ACCURATE ALARM: Our Tuya motion detector consists of upper and lower detection , 110 detection angle, 40 feet detection distance,support 360 degrees to adjust the detection orientation. Because of the dual infrared design, it can prevent people from climbing over the induction blind area without triggering the alarm and prevent false alarms from pets under 25KG. COMPATIBLE WITH & SMART LINKAGE: Pir motion sensor can be used with for , home, for home automation. It can also be linked with other smart wifi devices. for example, when you open the door, the sensor be triggered and the light turn on automatically. THE NEW UPGRADE USB WIFI DETECTOR: Because smart motion sensor is a wifi 24 hours online products, the power consumption be much higher than other sensor products, So we design it powered by USB cable, No need battery, just plugged in with USB cable all the time. Saves your money and saves the trouble of replacing the battery. Description: Smart Motion Sensor, WiFi Wireless Security Alarm,110dB Sound and Light Alarm, Free App Alerts, Home Security PIR Motion Detector with 4 Alarm Modes, Compatible with , Pls Note: Model A: Work With WiFi. Sound Alarm, Do Not Detect Animals (Less Than 25 Km), Detect Crawling Model B: Work With WiFi. No Sound Alarm, Do Not Detect Animals (Less Than 25 Km), Detect Crawling Model C: Work With WiFi. Sound Alarm, Do Not Detect Animals (Less Than 25 Km). Not Detect Crawling.Support USB Power And Battery Model D: The Alarm Works Independently, Does Not Need , Sound Alarm, Does Not Detect Animals, Detects Crawling. Support USB Power And Battery Specifications: Item model number: PIR Motion Detector Free alert information, 110dB sound alarm,Timming Arm And Disarm APP:Tuya Smart/ Detection distance: 0-12 meters (0-40ft) Detecting angle: 110 Wireless type: 2.4 GHz (5G is ) Frequency support: 802.11a/b/g Working temperature: -10-50(14F-122F) Working humidity: up to 95% RH Anti-white light interference: equal 7000LUX Installation method: Bracket mounting Application environment: indoor Size: 4.13x2.28x1.69inches/105x57.8x42.3mm Weight: 3.35oz/95g Color:White Material:plastic Package Contents: 1 * Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.