Multi Servo Tester 3CH ECS Consistency Speed Controler Power Channel CCPM Meter Master Checker RC Dron Helicopter Parts RC Hobby Features: CCPM Servo Consistency Master / Servo tester The device also can be used as a signal generator for electric speed controller (ESC), then you can test your motor system without using a transmitter and receiver. There are 3 modes to check servos or ESC: Manual mode: turn the knob with different speed, check the reaction time. Neutral mode: make the servo go back to the neutral point. Automatic \\"window wiper\\" mode: make the servo swing like a window wipers in the biggest angle. It can connect 1-3 servos simultaneously and test such as 1-3 servos consistency and so on. You can also connect 1-3 ESC to test and compare their reaction time respectively. It can connect 3 servos of the CCPM helicopters and select servos. 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. Specifications: Voltage consumption: DC4.8-6V Size: 48 x 42 x 17mm Original box: NO Color: Blue Item size: 48*42*17 mm Net weight: 7g Package weight: 13g Packet Contents: 1 x multi Servo tester Item specifics:Material: Composite MaterialOrigin: Mainland ChinaRecommend age: 12+y