Temperature and humidity meter Uni-T UT333 Uni-T MEASUREMENT RANGES Temperature Measurement range: -10 C 60 C 14 F 140 F Measurement Accuracy: 1 C 2 F Resolution: 0.1 C 0.2 F Humidity Measurement range: 0-100 percent RH Measurement Accuracy: 5 percent RH Resolution: 0.1 percent ADDITIONAL FUNCTIONS Temperature unit selection: C or F Freezing the last reading Automatic shutdown Low battery indicator MAX or MIN modes Screen backlight Reload notification GENERAL FEATURES Number of measurements: 1 or s Power supply: 3x 1.5 V battery (R03) LCD display: 32 x 26 mm Dimensions: 155 x 50 x 28 mm Weight: 102 g Accessories: Batteries ENVIRONMENTAL Indoor use only Altitude npm : 2000 m Drop resistance: can withstand a drop from a height of 1 m Safety standard: EN61326-1 Degree of environmental protection: 2 Operating temperature and relative humidity: 0 C 40 C ( andlt 90 percent RH) Storage temperature and relative humidity: -20 C 60 C ( andlt 80 percent RH). 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.