... disturbance capability, pretty apprarance, etc.JC-T Series dual setting electrronic counter can be used in the industries of packing ... SeriesJC(Series)Size of surface panel(mm) Dual pre-setting kind Naught:dual channel inpendent counting model Classification of power ... mounting hole(mm)Inserted depth(mm)JC20TJC72TJC80T0-999999With pre-setting,counting kind counting output kind,output mono-stable time ...