Features: _x000D_ Fully aluminum alloy enclosure, anodized, can test analog and digital servos, can control ESC (motor stepless speed regulation test) _x000D_ It can simultaneously test whether 3 servos are synchronized (this function is mainly applicable to helicopter steering gear in CCPM mode) _x000D_ There are 3 modes to check servos or ESC:_x000D_ Manual mode: turn the knob with different speed, check the reaction time;_x000D_ Neutral mode: make the servo go back to the neutral point;_x000D_ Automatic "window wiper" mode: make the servo swing like a window wipers in the biggest angle. _x000D_ It can connect 1-3 servos simultaneously and test such as 1-3 servos consistency and so on. _x000D_ You can also connect 1-3 ESC to test and compare their reaction time respectively. _x000D_ It can connect 3 servos of the CCPM helicopters, and select servos by neutral and synchronous functions _x000D_ It can also connect the servo of airplanes install the steering-box and adjust planes by using such as the neutral mode and so on. _x000D_ _x000D_ Specification: _x000D_ Material: aluminum alloy _x000D_ Input voltage: DC4.8-6v _x000D_ Channel: 3CH _x000D_ Weight: Approx.28g/1oz _x000D_ _x000D_ Package list: _x000D_ 1 x 3CH ESC Servo Tester _x000D_