Features:This product is a DC gear motor with magnetic coded disc hall encoderThis DC motor features large moment of force, low speed, and low noise.The motor is made of metal gear, wear-resisting, avoid tooth breaking, so with long serving life.This motor is adopted of pure copper wire coil, with low heat and low loss.Widelyused in Electronic locks, DIY toy cars, little robots, tracking cars, balancing cars and so onSpecification:Model:GBMQ-GM12BY20Material: metalPower: 2WOutput signal: AB phaseShaft length: 10mm/0.4inShaft diameter: 3mm/0.1inHall response frequency: 100KHzOperating temperature range: -30 ~ 110 Output pulse number: 3pprLength: 4.2cm/1.7inWeight: 14g/0.5ozWiring method:black: motor power"-"red: motor power"+"brown: encode power "+"green: encode power "-"blue: encode output A phasewhite: encode output B phase(Note: Encoder input voltage: 3.3-12v)Package list:1 x gear motor