... digital hour meter/counter 1. LED display 2. 0.1S-9999D23H 3.12vdc,24vdc,48vdc,110VAC,220VAC,380VDC 4.CE,Preset 6 digits digital ... .different time range Specifications Signal: Contact signal, voltage signalOperating voltage: AC/DC 24V,36V,110V,220V,380V,50HZVoltage signal vibration range ...