HIT36956 - 32-Bit, High Torque, Waterproof, Steel Gear Servo. Features:
Programmable PWM Digital Amplifier,
32-Bit MCU with 12-Bit ADC Circuitry,
4096 Resolution,
1M Cycle Long Life Potentiometer,
Wide Operating Voltage (4.8 ~ 8.4 Volts DC),
Dual Ball Bearing Supported Output Shaft,
25-Tooth Output Spline,
Coreless Metal Brush Motors,
Nylon Reinforced Plastic Upper and Lower Case,
Diamond Cut Aluminum Heat Sink Center Case,
Water Resistant and Waterproof Proof Case,
Speed (Second @ 60°) 0.19 ~ 0.12
Maximum Torque Range oz. / in. 251 ~ 405