Taylor Precision Products 1731 Wireless Indoor & Outdoor Weather Station with Hygrometer • Daily min/max recall & trend indicators for temperature & humidity;• Wireless remote sensor transmits up to 200ft;• Humidity range: 20%-95%;• Indoor temperature range: 32deg F/122deg F & 0deg C/50deg C;• Outdoor temperature range with alkaline batteries: -4deg F/140deg F & -20deg C/60deg C;• Outdoor temperature range with lithium batteries: -40deg F/140deg F & -40deg C/60deg C;• Includes calendar & alarm clock features;