Large Displays for indication at long distances. For inside applications, panel mounting or wall mounting. Meters with 4 and 6 digits Digits with 57 and 100 mm height Mounting Panel or Wall Units for Real Time Clock, Chronometers and Synzhronized Time Networks Clocks and Chronometers Formats MM:SS, HH:MM and HH:MM:SS Powered 230 Vac Powered 115 Vac or 24 Vdc Optional All units with digit height 57mm or 100mm