The Oxley ET4000 Series ETIs are panel mounted digital hour meters/pulse counters with built-in liquid crystal display (LCD) providing a 7 digit visual readout. The high visibility LCD has integrated temperature compensation and optional display backlighting.

 Powered by an external power supply, all versions employ an internal quartz crystal to ensure very accurate hours/pulse measurement and EEPROM for typically 25years data retention in the absence of power.

Versatile power supply inputs are compatible with both d.c. and a.c. supplies over a wide operating voltage range. All units are supplied with panel sealing gasket.