Features Connect Up to 3 Servos Simultaneously: Effortlessly test and compare the consistency and reaction times of up to 3 servos at once for enhanced performance in your RC airplane Versatile Operating Modes: Choose from 3 modes—manual, neutral, and automatic window wiper mode—to suit your testing needs, ensuring optimal functionality for any scenario Manual Mode for Precision Testing: Adjust the speed using the knob in manual mode to accurately assess reaction times, allowing for precise tuning of your servos Practical Automatic Wiper Function: Experience the convenience of the automatic window wiper mode, which swings the servo to its maximum angle, perfect for real-world applications Durable and Lightweight Design: Constructed from robust aluminum alloy, this servo tester is both lightweight and reliable, featuring an easy-to-use button for seamless operation Features: 1、It can connect 1？3 servos simultaneously and test such as 1？3 servos consistency ,also can compare their reactions time respectively. 2、There are 3 modes to check servos or ESC, such as manual mode, neutral mode, automatic window wiper mode. You can choose the mode you need according to your needs. 3、Manual mode that turn the knob with different speed, check the reactions time. Neutral mode that make the servo go back to the neutral point. 4、Automatic window wiper mode that make the servo swing like a window wipers in the biggest angle, it is very practical. 5、It is made of aluminum alloy shell, to use, light in weight, safe and reliable, button is convenient. Specification: Item Type: Servo Tester Material: Aluminum Alloy Color: As shown in the picture Input Voltage: DC4.8-6v Manual Mode: Turn the knob with different speed, check the reactions 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. Package List: 1 x Servo Tester Package List 1 x Servo Tester