Item Net Weight: 0.034 Pounds/15.5g

Wireless Protocols: Zigbee

Hub Required?: YES (AQARA HUB)

Compatible Platforms: Aqara, Apple Home, Alexa, IFTTT

Usage: Indoor Use

Operating Humidity: 0-95%RH, non-condensing

Operating Temperature: -10°C - +45°C (14°F - 113°F)

Batteries: Lithium Metal (CR1632, Included)

Product Dimensions: 1.61 × 0.87 × 0.43 inch (41×22×11 mm) & 0.79 × 0.39 × 0.39 inch (20×9.91×9.91 mm)