American Time manufactures system secondary replacements for Edwards clocks with wired synchronous correction.
The AllSync Plus® replacement clocks use a solid state circuit board movement instead of the traditional mechanical movement and use up to 80% less energy.
AllSync Plus® 010 & 012 Series Molded Case System Clocks
AllSync Plus® 010 & 012 Series Steel Case System Clocks
AllSync Plus® 2471B & 2472B Series Molded Case System Clocks