Trumeter electromechanical ac hour meters 90 264vac trumeter 722 0003 p the trumeter 722 0003 is a mini flush round electromechanical ac hour meter that provides an operating range of 90 264vac 50 60hz no longer will you require two separate meters one for 115v ac and one for 230v ac p p the meter has frac14 inch 6 3mm spade terminals hours and 1 10 s a quartz time base insures accurate long term time keeping while the totally sealed case protects against the environment and pro