6 digit preset counters with lc supertwist displays some in the series are lit and can quantify the incoming pulse with a factor the forwards and backwards counter switches either at the preset value or when reaching 0 the 2 way display shows the count 85 mm high digits and the preset value 45 mm high digits wide power supply range a bi stable 1 pin output relay programmable as opener or closer supplies a constant or pulsed up to 99 s output signal easy to read due to supertwist