HJ Digital Servo Tester / ESC Consistency Tester for R/C Helicopter

HJ Digital Servo Tester is designed for testing servo performance in R/C helicopters. It provides synchronization output control for multiple servos.

• Input voltage: DC 5~6V
• Output signal width: 800~2200us
• Synchronization output control for up to 4 servos
• Accuracy of output signal: 2us
• PPM signal test function
• Manual mode with 20us energization
• 50Hz analog servo signal cycle
• Rotary potentiometers to adjust output pulse width
• Button select for manual, neutral, and automatic modes
• Warning for signal type selection to prevent servo damage