Manufacturer Part Number: HED 251-T|Counter Type|CounterDisplay Type|LCDBore Diameter|Frequency|Output Type|Input Voltage|Resolution|Material|Mount Type|PanelCounts Per Revolution|Reset Type|Negative Edge TriggeredCounting Direction|Number Of Output Channels|Direction Of Rotation|Batteries Included|Output Channels|Maximum Count|Battery Size|Output Current|Battery Chemistry|Shaft Rotation|Overall Height|Overall Width|Minimum Temperature|-10 COverall Depth|Maximum Temperature|50 CShaft Diameter|Overall Diameter|Overall Length|Resettable|YesScaler|Standards|CE; REACH; RoHS Complaint; UL Listed; WEEE; cUL ListedFeatures|CMOS Circuitry; External Reset Input; Integral Backlight; Low Quiescent Current Consumption; MiniatureSeries|HEDNumber Of Mounting Holes|Voltage|UNSPSC Code|Terminations|Number Of Digits|4