Power on, Pulse start , Proximity/Photo sensor Preset Range 0 to 9999 counts Batch Range 0 to 999999 counts X factor for length meter 0.001 to9.999 Up counting with Out put LED Available Front and external Reset 10 years run time memory backup Relay out put with 230 VAC mains operated Size available 72X72,96X96 mm Batch Timer Range : 9999sec/min, Total : 999999se/min.