• WARRANTY 2 YEARS SPECIFICATIONS Wireless 868 / 922 MHz Temperature Accuracy ±0.3°C/± 0.54°F Humidity Accuracy ±3%RH Data Refresh Speed 2s OVERALL Operating Temperature -20~60ºC / -4~140ºF Operating Humidity 0% ~ 99%RH Dimensions (H X W X D) 464612.3 mm Power Requirements CR2450 Coin Battery SYSTEM Hub Required Yes PACKAGE CONTENTS - Tapo T310 - Battery CR2450 - Lanyard - Quick Start Guide - 3M Adhesive - Adhesive Magnet - Eject Pin