High-precision Plus And Minus Counter Meter Counter With Encoder + Meter Wheel + Bracket , High Resolution - A_1

Purchase options A: full set (wheel circumference 300mm, diameter 95.5mm, encoder 600 pulses) B: full set (wheel circumference 200mm, diameter 63.7mm, encoder 300 pulses) C:600 Single encoder Output mode: collector open circuit NPN D:300 Single encoder Output mode: collector open circuit NPN