Double speed measuring module with photoelectric encoder/tachometer

DESCRIPTION 
.Brand new Double Speed Measuring Module Two Speed Encoder Photoelectric Encoder Pulse Output Module HC – 020K (2 PCS)
.This module has gone through a variety of professional test
.Switch output speed measuring module when used with black encoder can measure the motor speed
.HC-020K is a module of wide voltage high resolution and short response time widely applied to the production of high-precision encoder
.Reinforcement treatment durable
Specifications:
.Color: Green + black
.Material: FR4
.Working Voltage: 4.5~5.5V
.Launch Tube Pressure drop: V f=1.6V
.Launch Tube Current: I f<20mA
.Signal Output: A, B two lines
.TT Power Level
.Resolution: 0.01mm
.Measurement Frequency: 100 KHz
.D Type Holes Encoder Diameter: 24mm
.Encoder Resolution: 20 lines
.Speed measuring Sensor configuration: measure line 1 motor speed