... 5mm.D=40mm 2.Various number of pulse(100-2500p/r) 3.Output:Open collector NPN ,Voltage. 1. FEATURES ... .* No. of impulse: 50, 100, 200, 360...2500P/R or other special indicated.* Output wave: square wave.* Response requency ... : 980M/S2, 6ms, 2 times each on XYZ* Viration proof: 50/ms2, 10~200Hz, 2 hours each on XYZ* ... .,LTD Shaft encoder ,Incremental encoder ,rotary encoder ,rotary switch ISN4005(IBEST)