He microprocessor based hardware unit is convertible as counter or timer with single relay output. Supply voltage can be 110 VAC and 230 VAC. The unit have external reset / Auto reset / Auto reset time settable options. The input can be proximity sensor / potential free contact / 24 VDC. The process value is displayed in 4 digit 7 segment led display of 0.5 inch size. The setting can be done through front panel thump-wheel switch. Maximum count value is 9999. The size of the unit is 72 X 72mm with Panel cut cut size of 69 X 69mm and depth of 115mm.