Tips:
Do not place the thermometer and hygrometer in the environment with extremely high or low temperatures, as it will cause damage to electronic parts and plastics. Remove the batteries from the device if you want to store it for a few months. If the humidity is between 30% and 69%, the small triangular hand is not displayed.
Box contents:
1 x thermometer and hygrometer inside, 1 x user manual (English language not guaranteed), 2 x AAA batteries