1. Oil filled pressure gauge can read correct requirements of the workers, the standard output can indicate correct pressure. So it can avoid to be broken because of overloading. 2. The output pressure of Single and Double action hydraulic pump is 700kg/cm2(10000PSI) 3. Voltage indicator, the power has entered in the machine. 4. Fuse: to protect the motor and machine safety while the power overloading. 5. Memory: The internal is equipped with a set memory to indicate the times of using in one year or five years, and provide maintenance of product and lifetime reference. 6. Special oil: It must change the oil at least one time in a year, and please use the R-32 super special cycle oil and do not use the wrong oil to avoid breaking pump.