Wireless Weather Station WWVB RCC + 3 Remote Sensor LED Backlight Moonphase Outdoor Indoor Temperature Humidity Clock Colorful Display Indoor/Outdoor Temperature Display : Indoor : 0~50C , Outdoor: -40~70C 3 RF Channel: CH1, CH2, & CH3 Air Presure range: 800~1100MB Humidity range: 20~90% (both indoor and outdoor) Temperature Range: Indoor :0~50C (32~122F) / Outdoor: -40~70C (-40~158F)