TCN-ZK(22SP)+BLH-40S multiple vending machine locker vending machine

- Independent master with 21.5” display,works with cash/cashless payment.
- Master+slave mode,different slaves with 19/27/40/64c ellsare available.
- The maste rworks with up to 6 slaves at the same time.
- Eye-catching flashing light in the lockers.