Questions about Bresser Weather Station Weather Centre 5-in-1 WLAN Prof. Sensor

There is a switch on the back that allows 3 levels of brightness. Very bright, not very bright and not bright. It is not completely switched off, but it does not light up at all or hardly at all.

Yes, the base is connected to the mains and the outdoor sensor is battery operated. Concerning the precipitation it measures the amount in mm.

Unfortunately not.