A. The function and features of EM card Sauna lock.:
1. Single card or two cards for opening door can be set randomly.
2. Necessary power: 4 standard alkaline batteries, it will give an alarm when batteries power is less than 4.6 v.
3. Batteries' life: Above 15 months.
4. Automatic bounce, not need handle.
5. Emergency open device can be used whenever the card fails
6. Stable gearing mechanism.
7. Wristband is rainproof, Anticorrosion and convenient to take.  
8. The range of working temperature: -30_80
9. Its net weight is about 0.185kgs, and gross weight is about 0.275kgs.

There are two kinds of opening modes of sauna locker locks, one is single card
opening, that is to say that the cabinet door can be opened by only guest card or master card. The other is double cards opening,the cabinet door must be opened by guest card and waiter card, only guest card or waiter card cannot open door.