How long does the weather clock take to learn and calibrate when you use it for the first time?

1) It usually takes 7-10 days to calibrate.

2) If it is moved from one environment to another (such as bringing the sensor from outside to inside in winter), a calibration time of several hours may be required.

Is the sensor waterproof?

The waterproof level of the sensor is IPX4. But we still recommend that you place it under a cover for protection, because long-term exposure to rain can easily cause internal rust and damage the parts (physical phenomenon).

The reason why the clock goes wrong automatically?

The default time zone of the weather clock is PST and the DST is OFF, you only need to simply set your standard time zone and ON/OFF DST according to the instructions when you use it for the first time. Then the clock won't be wrong.

When will the weather station automatically sync the WWVB signal to calibrate the time and date?

1) It will automatically search for the WWVB signal at 1:00-1:07, 2:00-2:07, and 3:00-3:07 am every day.

2) If the WWVB signal is interfered or weak, it will also search WWVB once an hour. such as 10:00-10:07am,11:00-11:07am,12:00-12:07am...

The screen goes blank for 7 minutes while the weather station is searching for a WWVB signal, is this normal?

Yes. Since the WWVB signal is susceptible to interference from many factors, turning off the screen during the search can shield some interference factors.