Item Type: PIR Sensor Material: ABS Battery Model: CR123Ax1 (Not Built-in Battery) Standby Current: 34uA Alarm Current: 75mA-90mA Operating Temperature: 0-+40 Operating Humidity: 20%-85% Package List 1 x Infrared Sensor 1 x Base 2 x Screw 2 x Expansion Pipe 1 x Manual It can be used only if it is connected to a 2.4ghz wifi network 1It can be used to build intelligent automation or security systems in homes or public areas, or to work independently without a gateway. 2When a person or pet enters the sensor range, the sensor is triggered, which activates the associated smart device through a preset smart scene. 3For example, when the intelligent light bulb or intelligent audible and visual alarm is turned on, it will also push an alarm notification to the mobile APP bound to the device. 4Advanced motion sensor pir detects human or animal movement, 7m/7.7yd detection distance, no matter day or night can be realtime detect. 5Compact shape, reasonable size design, internal structure optimization, bring you convenience, beautiful and enjoy. 6Advanced PIR technology, day and night continuous detection, long time continuous detection, more safe. 7Support multidevice control, you can enjoy your smart home and WiFi smart home devices.