Parallax Continuous Rotation Servo

Power requirements: 4 to 6 VDC* , 15 -200 mA

Communication: Pulse-width modulation
Dimensions: 2.2 x 0.8 x 1.6 in (55.8x 19 x 406 mm) excluding servo horn
Operating temp range: +14 to +122 °F (-10 to +50 °C)
Torque: 38 oz-in @ 6 V