Features This product has 600 p/r (Single‑phase 600 pulses /R,Two phase 4 frequency doubling to 2400 pulses). Power source is DC5‑24V. Stable working performance and good working condition. AB 2phase output rectangular orthogonal pulse circuit, the output for the NPN open collector output type. It can be used to measure the rotational rate, Angle and acceleration of the object and the length measurement. Suitable for intelligent control of various displacement measurement, automatic fixed‑length leather automatic guillotine machines, steel cut length control, height and weight scale, students racing robots. Item Description: 1pc Incremental Rotation Encoder  600 p/r 6mm Shaft 5-24v Specifications: 100% brand newPulses: 600 p/r (Single-phase 600 pulses /R,Two phase 4 frequency doubling to 2400 pulses)Power source: DC5-24VShaft: 6*13mm/0.23*0.51"Size: 38*35.5mm/1.49*1.39"Output :AB 2phase output rectangular orthogonal pulse circuit, the output for the NPN open collector output typeMaximum mechanical rate: 5000 R / minResponse frequency: 0-20KHzCable length: 1.5 meter Uses: 1. It can be used to measure the rotational rate, Angle and acceleration of the object and the length measurement2. Suitable for intelligent control of various displacement measurement, automatic fixed-length leather automatic guillotine machines, steel cut length control, civil measured height human scale, Students racing robots Notice: AB 2phase output must not be directly connected with VCC, otherwise, will burn the output triode, because different batches, and may not have the terminal.(Green = A phase, white = B phase, red = Vcc power +, black = V0) Package included: 1 x Encoder 600P/R Incremental Rotation Encoder Package List