1-10pcs 5-26V Simple Small Servo ESC Tester Brushless Fan Motor Speed Controller

About this deal

This compact, lightweight device supports a wide 5-26V DC input and uses PWM speed control technology for precise, smooth speed regulation of brushless motors and small fans. Its miniaturised design makes it well suited for DIY projects and hobbyist builds. When connected to an electronic speed controller (brush or brushless), it allows manual speed control without the need for a remote control transmitter and receiver. It includes an onboard voltage reduction circuit, so it can connect directly to 2S, 3S, 4S, 5S or 6S LiPo batteries without requiring a separate BEC. It also functions as a servo tester with three modes: manual (turn the knob to check reaction time), neutral (return the servo to its centre point), and an automatic sweep mode. Ideal for RC aircraft, FPV drones, and DIY fan builds. Available in packs of 1, 5, 10 or more pieces.