Features:  Dual 6 digits light-emitting diode display for clear reading.  NPN and PNP sensor input is switchable.    Includes 4 kinds of input mode, 6 kinds of output mode for option.  Input and output is optional isolated.  Counting Range: -199999～999999; Preset Range: 0.00001-999999.   Can set alarm value for relay output.  Can be connected with encoder, proximity switch, photoelectric switch, optical sensor, laser sensor, etc.  Widely applied in chemical, machine, light industry, etc.    Specifications:  Material: ABS  Voltage: 90~265V AC/DC   Auxiliary Power: 24V DC  Input: Pulse Signal: Square Wave and Sine Wave: 5V≤H≤30V 0≤L≤2V up edge active  Input Impedance: ≥10KΩ  Counting Speed: 30/5000CPS  Counting Range: -199999～999999  Preset Range: 0.00001-999999  Response speed: switch type input 0~5000hz, incremental encoder input 0~2000hz  Accuracy: ±0.1%F.S   Output: 2 Relay Contact Output   Environment Temperature: 0～50℃  Storage Temperature: -10～60℃  Environment Humidity: 35～85%RH  Insulation Resistance: ≥10MΩ  Power Consumption: ≤5W   Contact Edge: Up edge active  Item Size: 9.5 * 8.5 * 4.7cm / 3.74 * 3.35 * 1.85in  Item Weight: 167g / 5.89oz  Package Weight: 203g / 7.16oz  Package Size: 11 * 10.1 * 5.5cm / 4.33 * 3.98 * 2.17in    Packing List:  1 * Counter  2 * Brackets  1 * User Manual (English)