USB input voltage: DC5V/2A

Battery: DC3V LR3*2

Standby Current: <55uA

Alarming Current: <135mA

Low-voltage notification: <2.4V

Wi-Fi: 802.11b/g/n

Detection distance: 6M

Detection angle: 360°C ceilling-installation

Installation method: ceiling/wall

Working temperature: -10°C -+50°C

Working humidity: <95%RH