What is the Difference Between the WH31 and WH31B?
Both the WH31 and WH31B are 8-channel thermo-hygrometers that support a variety of Ambient Weather Stations.
The WH31 includes a radio controlled clock (RCC). The WH31B does not.
The WH31 is only required for the WS-3000, which includes a Radio Controlled Clock.
Our Internet Connected weather stations receive the time from the Internet Time Server (NIST.gov).