【Card Cabinet Lock】How to supply power to the Sensor Locker Lock?

【Card Cabinet Lock】How to supply power to the Sensor Locker Lock?

The sensor locker lock is powered by 4pcs AA Batteries, last 5-10 months normally.

If low Voltage (<4.8V),  there will be alarm sound to remind you changing battery.

All locks we supply have an external power port on it. 
If battery totally exhausted, connect a battery case with 4 pcs AA battery, then unlock. 
You don't have to destroy the locker/cabinet if battery dead.

You can also use a  transformer to transform your city power (AC) to DC (6V) to supply power to all locks centrally.