Features: 1.Using an ultra?sensitive 360 external sensor, it can detect all objects in the sensing area, avoiding false alarms, omission alarms, etc. 2.Made of ABS flame?retardant material, which is flame?retardant and high?temperature resistant. It will not affect the appearance no matter where it is installed. 3.A security guard, it can protect your sweet home and give you a warm harbor, good ceiling detector on the market. 4.After the power is connected, the detector will start within 2 minutes. The test needs to detect in the area with no other people. During the test, the alarm host must be disarmed. 5.The motion sensor can be widely used, suitable for home, shops, factories, villas and so on. Specification: Item Type: Motion Sensor Material: ABS Color: Milky White Installation Height: 2.1-3.7m/2.3-4.05yd, When the Installation Height is 2.4m/2.62yd, the Effective Diameter is 7.3m/7.98yd Working Voltage: 12V Alarm Current: 30mA Working Temperature: 0-50 Communication Method: Wired Use Range: Home, Shops, Factories, Villas, Etc. PackageList: 1 x Motion Sensor 1 x Sticker 1 x Manual