These are HiTec HS-645MG Ultra Torque Metal Gear Servos for your Heavy Duty needs! The servos are made by Hitec. For Details see the datasheet. On all Hitec servos the Black wire is 'ground', the Red wire (center wire) is 'power', and the yellow (third) wire is 'signal'. This servo has a Hitec/JR connector which mates directly with a 0.1" 3-pin header. This servo comes with mounting hardware, servo arms, and rubber mounting grommets.
This servo offers 133.31 oz/in. (9.6kg.cm) of torque at 6V as compared to 52 on/in for the HS-422 servo
To mount this servo to a flat surface see our servo hardware kit. We also sell scanner brackets to attach to the servos.
You can also select to get this servo modified servo for continuous rotation if you wish, or you can do it yourself.
This HiTec servo is a multi-turn servo winch. Depending on the RC system used, you can get up to 4 full 360 degree revolutions of high torque out of this servo.
The D-645MW 32-Bit, High Speed, Metal Gear Servo is part of D-Series dynamo servo line. All Hitec D-Series servos have been designed using brand new, cutting edge, custom engineering.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.
900 MHz Rubber Duck Antenna - Male Type F