Features: Small size makes it convenient for various DIY, can quickly detect and set the virtual position of the, observe the jitter of the, and use a single-chip computer for precise control. The knob can be used to detect the, drive electrical adjustment, etc. If an electronic speed regulator (brushless or brushless) is connected, manual speed regulation can be performed without the need for a remote control device for testing and adjustment. The performance of the speedometer or engine is very convenient, eliminating the cumbersome connection between the remote control and the receiver. Equivalent to the "manual receiver" function, the simulated transmitter turns the rudder through the knob Instructions: This tester has an integrated step-down circuit, which can be directly connected to 1S2S3S45S6S batteries (3-26V is recommended to be 16VI) Add BEC, simple wiring electric tuning tester Can be used for DIY brushless power fans and other application scenarios Support for PWM signal input to achieve precise speed regulation Wide voltage range, suitable for 3V-26V power input Compact structure, simple to use, easy to install and maintain Specifications: Product name: Rotary potentiometer Size: PCB size: 19*12mm Material: PCB board Color: as shown in the figure Current: ≤15mA (5.0) Input: DC3-26v Output signal: 1.5ms±0.5ms Cycle frequency 50hz, duty cycle 900-2100us Package Content: A: No-weld pin header speed regulator B: Welding needle speed regulator C: Welding wire Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 【COMPACT DESIGN】 This small brushless motor gear speed regulator test module is perfect for DIY enthusiasts, allowing for quick detection and adjustment of motor positions with minimal space requirements. 【USER-FRIENDLY CONTROL】 Equipped with a knob for manual speed regulation, it simplifies the process of driving electrical adjustments without needing remote control devices. 【WIDE APPLICATIONS】 for various applications such as brushless power fans, this module supports signal input for effective speed regulation. 【EASY CONNECTION】 The integrated step-down circuit allows direct connection to multiple battery configurations (1S to 6S), making it convenient for various setups. 【SIZING REMINDER】 PCB size measures 19mm x 12mm; please compatibility with your project specifications.