this type RF lock can be instead of mechanical knob lock directly and you can't change the drill hole on the door.

Requirements of Installation
 Door material: Metal, Wood,
 With a door thickness of 1-3/8" - 2.0"
 Fits a standard 2-1/8" diameter hole.

A. Hotel door lock System Construction
DouWin mifare locks, computer, management software, Encoder, Temic card or Mifare card., energy saving switch
Nowaday our hotel lock system can integrate with other access system(such as Parking system, hotel lobby entrance, elevator entrance, swiming pool entrance, Massage entrance, etc. ). Thus, the Guest can use his card open his room and other entrances(such as Parking system, hotel lobby entrance, elevator entrance, swiming pool entrance, Massage entrance, etc. ). It is convenient for hotel management.

B. Multiple functions
1. Five levels of control: General control, building control, floor control, area control and room control.
2. Password control: System password and operating password together to ensure security.
3. Cipher coding to key card: Each card has a different code that cannot be copied. Compulsory decoding will destroy the card automatically.
4. Area control: Cards of different types and levels can open different locks in different locations.
5. Timing control: Working clock is set inside locks to control the effective time limit of card keys.
6. File record: All issued card keys have records including each opening(also mechanical key opening).
7. Loss reporting: Open function can be cancelled when the card is missed.

C. Strong compatibility and expansiveness
The system can be run above WINDOWS 3.1 operating system. In provided with strong expansiveness, it can link with the hotel management system. The system is in kind system interface which is easily operated.

Basic Technical Functional Index:
1. Power Supply: DC6V, use of 4 pieces of No. 5 (or No. 7) AA batteries, with lack of voltage indications.
2. Static Power Supply: <1u A>
3. Dynamic Power Supply: About 200mA
4. Lifetime of battery: For the allowed door open times, it normally can exceed 10, 000
5. Inductive Distance: 3-10cm
6. Record inside the lock: 256 lines for standard type, exceed 1, 000 lines for special demand
7. Setting Requirement: Working temperature -20º C~70º C, humidity: 98%max
8. Anti-static Electricity: Totally closing status, the problem of static electricity is resolved.