Specifications:

• Wireless protocol: Zigbee 3.0
• Battery: AAA
• Dimensions: 51 x 51 x 21 mm/2.01 × 2.01 × 0.83 in
• Weight: 18.5 g/0.65 oz
• Detection radius: 5 m/16.4 ft
• Operating Temp: 5 Celsius - 60 Celsius/41°F – 140°F
• Working humidity: 20%RH - 80%RH
• Working voltage: DC 3V
• Battery type: CR2032