6 reasons you need a servo tester in your RC Plane shop
If you know more than 6, leave a comment.
Link to tester.. https://www.amazon.com/DIYmall-Consistency-Controller-Helicopter-Airplane/dp/B07FQNZHG4/ref=sr_1_9?crid=1N7A74423ON2T&dib=eyJ2IjoiMSJ9.8xCzOCApK04pDfeugxCZMaKcdGIbwI2mnXf0LUKCIZnrPV76oG4ZMVlcQCeQiiXSLvAjoTlD9bm-U5Ksr5mHZaiAO5bm2O7EJjx-zaRgCYcHRWlTUPSpdL4WTpB10yIdfovKN3CSbT_ARlS2DogMmG_mJGvYk-p25D0lLZIiulhqVmoO2P7hYaekKnfTvvniGidAaiyNlQCRtiAKRTCLmEQhYqUL_s4NNYIv9V3gkuyh9YKtAmBDTSlniBrT5jlJjwXcLiIDeYuNXeWouIQtNWzBpeqM-TqJtI6BXFPto5g.3Mbz4n97mmjU1bslfLaOrqHAMtpC8aChFWGwBoNX4TQ&dib_tag=se&keywords=servo+tester&qid=1711743455&sprefix=servo+tester%2Caps%2C109&sr=8-9