product informationThe indoor thermometer and hygrometer plays an important role in offices, hotels, greenhouses, incubation rooms, feeding rooms, schools, laboratories, children 39;s rooms, hospitals, etcSpecification:Measuring range: Temperature: -1050 (14 to 158)Accuracy: Temperature: 1C; Humidity: 5%Resolution: Temperature: 0.1C; Humidity: 1%Powered by the following devices: 2 AAA batteries (not included)Display mode: LCDDimensions (length x width x height): 10.5 x 9.5 x 2.5 cm / 4.13 x 3.74 x 0.98 inchPacking list: 1 x indoor thermometer hygrometerNotice: Replace the battery when the display becomes dim The performance of the device may be affected if it is operated in a radio frequency field, for example in the vicinity of a mobile phone or if it is subjected to an electric shock. Temperature and humidity accuracy: 1 C / 5%. The numerical deviation is within the acceptable range, it is a normal phenomenon.We recommend restarting the thermometer and changing new batteries.At the same time, the thermometer should be placed without human touch for a while to see if the value changes.