Please note: This product is a pure mechanical dial measuring instrument and does not need to use batteries.
This portable weather station is composed of a barometer, a thermometer and a hygrometer.
This thermometer and hygrometer is already accurate; users do not have to adjust again.
Q: Why the barometer atmospheric pressure value seems never change?
A: For our barometer, it seems this question is confused by some users. The atmospheric pressure changes very little if the weather does not change too much per day. It changes big and obviously only when the weather changes too much, such as the typhoon, rain etc.
To verify the meter works fine or not, simple way is to put the meter into one full air plastic bag then seals it, then press the bag (please see the video).
