not enough information on exactly how to hook up this event counter. didn't seem to count at 8 Vdc when toggling counting input via capacitor and resistor. so tried 15vdc . when lifted the count direction lead to +15vdc , smoked unit and I could smell it. end of device. ready for the garbage bin.
started a dispute as soon as I received this item.But somehow your system has deleted that dispute with no Ruling because the level of technical information wasn't provided ,I needed to guess what voltage input levels and polarities would be okay. Unfortunately this counter didn't count anything at all. as with a resistor to ground and a capacitor input , the count input didn't cause any changes to the "0" display. And when I input +15Vdc to one of the up count down count leads there was a wiff of smoke and the display permanently had one segment unlit. this unit never worked at all.
counter not work, one right digit always display 0