ขาย ewelink pir ระบบเตือนภัยไร้สายอินฟราเรด 433 mhz rf motion sensor ราคาที่ดีที่สุด

eWeLink PIR Wireless Dual Infrared Detector 433Mhz RF PIR Motion Sensor Smart Home Automation Security Alarm System Overview: This wireless wide angle passive-infrared (PIR) motion sensor is a 433MHz RF PIR motion sensor for human detection. The motion detector can work with the Sonoff RF Bridge 433, providing human detected alarm message push to your phone. Features: *Dual infrared. Ultra-low power microprocessors. *Imported sensors, overcome false alarm, anti-crawling, no dead angle. *Double temperature compensation technology, adjustable pulse count. *Robust and durable, suitable for homes, offices, sheds, garages etc. *Easy installation and set-up, wall-mounted. Specifications: 433MHz Transmit distance: 150m (open) Voltage: DC 3V (2*AAA) Standby current: ≤35μA Alarm current: ≤15mA Wireless frequency: 433.92MHz Wireless Transmit Code: 1527Mhz (default) Detection distance: 9-12m@ 25℃ Detection angle: 110 degrees (wide angle) Maximum coverage area: 12m*12m Alarm indicator light: on for 3 seconds Working environment: indoor Anti-white light intensity: 6500Lux Battery type: 2*AAA (not included) Item Size: 94 * 63 * 42mm Item Weight: Approx. 60g / 2.1oz Package Information: Package Size: Approx. 9.7 * 6.9 * 5.1cm / 3.8 * 2.7 *2in Package Weight: Approx. 82g / 2.9oz  Packing List: 1 * PIR Motion Sensor (without batteries) 1 * Bag of Mounting Screws 1 * User Manual