High quality material The housing of the RC motor servo tester is made of fully anodized aluminum alloy. Function and compatibility Tests both analogue and digital servos and controls ESCs for continuous speed control of the motor. Multi-servo capability Allows testing three servos simultaneously to check synchronization, which is especially useful for CCPM mode. ESC signal generation Can be used as a signal generator for an electric speed controller (ESC), enabling you to test your motor system without transmitter and receiver. Ease of use Connect to three servos of CCPM helicopters to adjust them and select servos using neutral position and sync functions. Use scenarios - CCPM helicopter setup: bench-test three servos together to verify synchronized movement and proper neutral positions before flight. - ESC and motor diagnosis: generate control signals to test ESCs and motors without a transmitter/receiver. - Servo compatibility check: quickly compare analogue and digital servos on a single test bench to ensure correct operation and timing. Note: retains original functions and specs for reliable, professional testing and calibration.