This Proximity / Code operated Door Entry Kit is ideal for people who want to control access to authorised personnel through a door by using a personal proximity tag or 'pin' code - when a correct tag is 'shown' a few inches from the unit or a correct code is entered it operates the lock release granting access to the user. The keypad can be used for higher security applications where a proximity tag and a code is needed to release the door. This access unit has the following programmable operating modes code only, tag only or code and tag. Main features: Slimline (Narrow) Combined Keypad / Reader / Controller with Metal Construction 12 Volt DC 2000 User Proximity Tags or Codes Weatherproof Keypad / Proximity Unit Surface Mounted Doo.