The Yale push button door lock is ideal for any room requiring restricted access. A keyless door lock that is operated by a keypad. Does not require power. Easy to use no need for keys. Over 8,000 codes to choose from to provide greater security. Code can easily be changed to 4 or 6 digits. Suitable for either left or right handed doors. Available with hold open function - door can be held unlocked when required. Door can be successfully unlocked when required. Satin chrome and polished brass finishes. Supplied with a latch. 5 Year warranty.