FeaturesSolid state hour metersEEPROM memory can retain data for 25+ yearsTime accumulation indicated by flashing hourglass iconMemory will arm only when power has been applied for 5 sRecord and display up to 99999.9 hr, rollover and continue timingSimple LCD hour meters with flexible input voltages48 to 150 VDC/100 to 230 VAC voltage rating