?G.T. Power Multi-functional CCPM 3-Channel Digital/Analog 1~3 ESC Servos Tester for RC Plane Car Boat Helicopter. <br> <img alt="" src="http://www.guphotos.com/images/uploads/RM4737.jpg"> <br> <strong>Features:</strong> <br> 3 modes to check servos or ESC <br> Manual mode: turn the knob with different speed£¬ check the reaction time <br> Neutral mode: make the servo go back to the neutral point <br> Automatic¡°window wiper¡±mode: make the servo swing like a window wipers in the biggest angle <br> Can connect and test 1-3 servos simultaneously <br> Can connect 1-3 ESC to test and compare their reaction time respectively <br> Can connect 3 servos of the CCPM helicopters and select servos <br> Can also connect the servo of airplanes install the steering-box and adjust planes by using such as the neutral mode and so on <br> <br> <strong>Specifications:</strong> <br> Brand: G.T. Power <br> Color: Blue <br> Material: Aluminum alloy <br> Output: 15mA <br> Voltage supply: DC4.8-6V <br> Output signal: 1.5ms¡À0.5ms <br> Size: 48 * 42 * 15mm <br> Net weight: 29g <br> <br> <strong>Package Information:</strong> <br> Package size: 14 * 10 * 3.5cm / 5.5 * 4 * 1.4in <br> Package weight: 45g / 1.6oz <br> Plastic package <br> <br> <strong>Package List:</strong> <br> 1 * Servo Tester