MEASURE RANGE: Temperature Range: -50 to 70C; Temperature Deviation: 1C. Humidity Range: 10% ~ 99%RH; Humidity Deviation: 5%RH. ; SIMPLE DESIGN: Thanks to its mini body and round shape, the device can be placed inconspicuously anywhere. With the most simple appearance and very practical function. Don't need an operation to read the display very easily. WIDE USAGE: You can use it in home, office, car, school, hotel, laboratory, kindergarten, aquaculture, instrument workshop, library, factory, greenhouse, basement, garage, garden shed, box for 3D printer filament and places equipped with air-conditioning, etc. INDOOR HUMIDITY MONITORING: Help you measure Indoor humidity and temperature in time, help to adjust the humidifier, dehumidifier settings, and humidistats, great for monitoring familys living conditions and health by preventing colds, dry skin, asthma, mold. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.