YX-0503 Special Power Supply for Mobile Phone Repair is designed for the mobile phone equipment repair industry. It uses an advanced short-circuit recovery circuit that provides fast protection and a buzzer sound. This unit also comes with an iPhone phone to trigger the boot function. The voltage and current are displayed by digital tube, and the degree is clear at a glance. The special current is connected to the 3A pointer meter, which makes it easier to see the instantaneous current jump.