Universal & versatile: wireless keypad for motorised Chamberlain garage door openers - with 4-digit PIN code for secure access, compatible with current models Secure & flexible access: temporary PINs allow time-limited access for visitors or service providers - long range & cryptographically secured rolling code for a reliable connection without accidentally opening neighbouring doors Compact & user-friendly: robust design with illuminated keys for easy operation in the dark - wireless installation with no wiring required Package includes: long-lasting 9V block battery for immediate use - ideal as an accessory for current Chamberlain garage door and gate openers Chamberlain - Innovation & Quality: one of the world's leading manufacturers of gate and garage door automation since the 1960s - highest quality standards, innovative designs & outstanding customer service, focused on customer needs, Manufacturer: Chamberlain