RFID Digital Lock Sauna For Spa Swimming Pool Gym Electronic Cabinet Drawer Lock
Needn't hole, work at batteries. Note it can't work at metal door.

Installing Steps:
1.Install the lock
2.Fill the batteries
3.Install the lock catch

Simple, EASY, DIY, needn't open a hole on door. It install at right angle(door and side)1), it's perfect for wooden door, cabinet.
1). Fill 2xAA 1.5V Batteries in the lock, and you can add RFID Cards.(Managing Card:1pcs, Guest Card:10pcs)
Two models, you can change by yourself.
One use any cards to open the cabinets(this is perfect to use at home)
Another is use the managing card or two guest card to open the cabinets(this is perfect to use at business, such as hotel, massage etc)

2). Fix the lock at inside of cabinet. Close it.
And use ID card to touch outside of cabinet, it lock will flick and open the door.(Note that tag only can be used for Max.2.5cm thick door, the ID card can be used for Max.4.5cm thick door)

Package:
1x Lock without batteries(it's difficult to deliver by AIR)
2x ID Tag(Blue, work at about 2.5CM distance)
1x ID Card(work at about 4.5CM distance Max.)
1x Package of Screws