Range&accuracy: indoor temp;
outdoor temp
Humidity: 20% RH to 99%RF
Display indoor temp/humidity

Range&accuracy: indoor temp.: -10°C to 50°C;

outdoor temp:-50°C to 70°C

   Humidity: 20% RH to 99%RF

   Display indoor temp/humidity

 Outdoor temp simultaneously

 °C/°F unit selectable,

    Reset function