Coinco MAG52BAB dollar bill acceptor / validator. The Coinco BA and Mag series continue to be the work horse of the industry. Accepts $1 bills only (upgrade to accept larger bills). Has a dual interface, 24 volt pulse interface and 24 volt (34 volt DC) MDB interface. These give one credit per dollar, please let us know if you need it programmed to four credits per dollar. May or may not have flashing green lights where bill is inserted. These units have been completely disassembled, cleaned, rebuilt with brand new belts, and calibrated. We stand behind all of our sales with a 90 day limited warranty