1. Material: ABS, electronic components
2. Working temperature: minus 10-55 degrees Celsius
3. Working humidity: 10-90 percent (non-condensing)
4. Connection method: Wi-Fi, Zigbee connection, Bluetooth
5. Wireless technology: 2.4G Wi-Fi
6. Storage sub-devices: 256
7. Transmission distance: 60-100 meters
8. Power input: DC5V 1A
9. Product size: 7.2 x 7 x 2.8 cm
