This is the S3102 Micro Precision Servo. Designed and Manufactured for use with Futaba Radios. It can produce high-current draw from your batteries if using NiMH or LiPo batteries, make sure they are capable of delivering sufficient amps.

FEATURES:
High Precision
Small Compact Design
3-pole motor
Metal and Nylon Gears and One Oilite Bushing

INCLUDES:
One S3102 Servo
One Servo Accessory Pack (horns, grommets, screws, bushings)
NOTE: for additional servo horns use FUTM1985

SPECS:
Speed: 0.25 sec/60¢X @ 4.8V
0.20 sec/60¢X @ 6V
Torque: 51 oz-in (3.7 kg/cm) @ 4.8V
64 oz-in (4.6 kg/cm) @ 6V
Dimensions: 1.1 x 0.5 x 1.2" (28 x 13 x 30mm)
Weight: 0.74oz (21g)