How many times can the Star Post pos machine check the balance in the card?

Three times. According to the information of the satellite mail payment pos machine, the balance of the inquiry card can be inquired three times, because the inquiry of the satellite mail payment pos machine is limited, so it can only be inquired three times. Star post payment POS machine is one of the brand series of Guo Tong's star post payment organization. The product types of this brand series include satellite mail payment MPOS machine, electronic signature POS machine and aggregate payment code scanning equipment.