Time distributing device (Master Clock) type MC-21

Master clock controls analog minute clocks by sending the impulse, which shifts analog clocks by one minute forward, and it controls digital clocks by sending every one second the coded information about the current time. 

High precision of indications for the master clock is the result of its cooperation with GPS antenna, receiving via radio way the information from the atomic GPS satellite time standard. The user sets optionally the day for the summer / winter time change. 

Optionally there are available versions of MC-21 master clock with the feature of controlling alarms / school bells.

More informations and technical data can be found in information leaflet below.