ขาย Chuango Wd-80 315MHz ระบบเซนเซอร์เตือนกันขโมยสั่นสะเทือนไร้สายสําหรับประตูหน้าต่าง ราคาที่ดีที่สุด

Note: It can only work with 315MHz alarm system, can't work with 433MHz alarm system. Features: *315MHz frequency, wireless transmission is more than or equal to 80 meters in open place.  *When the WD-80 detects vibration, it will send alerts to the alarm system for appropriate action.  *There are 3 sensitivity levels that can be adjusted to fit your needs or environment.  *It is ideal for safes, drawers, doors, windows and other places where a secure footing can be established. *Super quality material for durable use. Low-consumption design, which can make it work long time. Specifications: Power supply: DC 3V (AAA 1.5V LR03 * 2pc) Static current: ≤29uA Alarm current: ≤22.2mA Transmitting distance: ≤100m (in open area) Radio frequency: 315MHz  Housing material: ABS plastic Operation Condition: Temperature: -10°C ~ +55°C Relative humidity: ≤80% (non-condensing) Package Size: Approx. 16 * 11 * 5cm / 6.3 * 4.3 * 2in Package Weight: Approx. 120g / 4.2oz             Package List: 1 * Vibration Detector