Features:
1.Item :RC Servo tester
Material: Aluminum alloy
Channel: 3CH
Input voltage: DC4.8-6V
Output: 15mA (5.0)
Output signal: 1.5ms±0.5ms
Size: 48mm*42mm*17mm
Weight: 30g

Item : 4 Cell AA Battery Holder
Each holder holds 4pcs AA batteries
Voltage: 6V With JR connector
Works for RC, such as servo tester

3 modes:
a.Manual mode: turn the knob with different speed, check the reaction time.
b.Neutral mode: make the servo go back to the neutral point.
c.Automatic "window wiper" mode: make the servo swing like a window wipers in the biggest angle.

Fits for RC Car Boat Helis ESC and Motors ;
Used this item to test the steering servo for Traxxas remote control vehicle.

Package included:
1pcs 3CH Servo Tester
1pcs On/Off Switch with JR connector
1pcs 4 Cell AA Battery Holder