The device seems a bit light unpacking, but its operation is entirely satisfactory. The thermometer calibration is correct, the hygrometer is about average for this type of instrument to provide an approximate relative humidity value. The barometer is very accurate provided you take a little time to adjust by location (altitude). The adjustment screw on the back of the case is extremely sensitive and we must act with very small keys while tapping the body to find the equilibrium position of the needle to the desired value. This is obviously to make only once for a given location. Very good buy!
