Product advantages: 1. The product sets current overload protection, the motor adopts overheating, high temperature and automatic disconnection protection settings. 2. The product adopts external adjustable pressure, which can be adjusted appropriately according to the pressure required by the oil pump, and the pressure is more stable. With volume distributor is more reasonable and stable. 3. The digital display adopts double digital display, the working time and intermittent time work separately and display at the same time, to avoid the phenomenon of digital tube jumping and instability.