Liftmaster KPW5 Wireless Commercial Keypad - Secure Access Control System for Business & Garage Doors | Easy Installation & Weatherproof Design | Ideal for Offices, Warehouses & Residential Garages

The Wireless Commercial Keypad comes with one 9 volt Lithium battery, instructions, and two keys. A wireless signal is transmitted when a valid 4-digit PIN and the # key is pressed. A long tone will sound when the correct PIN is entered. The keypad backlight will illuminate for 15 seconds when any key is pressed. If an invalid PIN or partial PIN is accidentally entered, an error tone will sound.