it uses a standard DIN connector

matching standard commercial voltage requirements

Will this transformer fix a blank thermostat screen

preventing the control board from receiving a steady DC microamp signal

Direct Replacement: Seamlessly replaces 3100-20Q6

Utica-Dunkirk 240005246 Tridicator it uses a standard DINThe Utica Dunkirk 240005246 Tridicator is a professional grade boiler temperature and pressure gauge designed for precise hydronic system monitoring. Engineered as the direct replacement for 146 23 009 70, this OEM component ensures exact compatibility with Utica and Dunkirk boiler series. It features a high visibility dial face with a temperature range of 70 to 320 degrees F and a pressure scale of 0 to 75 PSI. The 5 inch stem length provides