Transmission Protocol: Wi-Fi
Wireless frequency: 2.4GHz
Working voltage: 2.2V-3V
Static current: ≤5uA
Alarm current: ≤30mA
Detecting distance: >20m
Wireless networking distance: ≤100m (in the open area)
Working environment: -10℃~+50℃
Working humidity: Maximum 95%RH
Battery Type : AAA x 2pcs
Physical Switch: 1 pc
Indicator light: 1 pc
Buzzer: 1 pc
Dimension:  packaging box: 100 x 28.5 x18.9 mm/pc, 0.04KG/pc .

• Transmission Protocol: Wi-Fi
  Wireless frequency: 2.4GHz
  Working voltage: 2.2V-3V
  Static current: ≤5uA
  Alarm current: ≤30mA
  Detecting distance: >20m
  Wireless networking distance: ≤100m (in the open area)
  Working environment: -10℃~+50℃
  Working humidity: Maximum 95%RH
  Battery Type : AAA x 2pcs
  Physical Switch: 1 pc
  Indicator light: 1 pc
  Buzzer: 1 pc
  app: iOS/Android
  Works with Alexa, Google Assistant and IFTTT
  Dimension:  packaging box: 100 x 28.5 x18.9 mm/pc, 0.04KG/pc .