Product Advantages: - Battery or power supply driven - 30000 cycles per battery - “Door open alarm” optional - GYM version (free locker choice) optional - Programming without any pc or software - Simple to install and robust Technology:- RFID cards and RFID fob- 125 kHz - EM4200, EM4450, - Range up to 30 mmHow it works? Work without software, each cabinet lock works with the fixed key card. *Function card:master card, key card. *The master card is used to create key card. *The key card is used to open the door *The same card can be shared by all of the locks. Create Mater Card: Press 'Reset button, touch the card want to become Master card All of the cabinets can share the same Master Card Create Key Card Touch Master Card 2 times, then touch the card want to become Key card. Terminate all key cards: Touch the mother card for 3 times successively.