0 868 165 868 Counter, 8 Digit, 60Hz, 24 V dc. The Hengstler 886 series digital counter is an 8-digit, panel mount without reset totalising device. This counter has a voltage input device that has a supply voltage rating of 24VDC. The counter requires a rear connection via shrouded push-on terminals (supplied with 0.8 x 2.8mm receptacles). This counter has a maximum count frequency of 60Hz.