This is an intelligentized multiple function counter. It is controlled by an 8-bit micro-controller and with eight-digit LED high bright display. Four measuring functions of frequency, period, totalize and self-check are involved in this counter. Moreover, there is a 10MHz OSC out.
Two kinds of power 110VAC and 220VAC can be supplied to the instrument. User can conveniently select it. The instrument has been designed according to IEC 1010-1 concerning safety requirements.