EM Style Flush-Mount Durable Metal Access Control Keypad, 500 Users, Single Gang Flush Mount Design, Metal Braille Alpha-Numeric Keys, Key Press Feedback via Sounder and Yellow LED, Indoor/Outdoor use, Keypad Programmable, Built-in Assignable Sounder, Bi-color Red/Green LED Indicates Relay StatusTypeTitleURLinstructions212iLW & 242iLW Standalone Keypad Installation & Programming Manualhttps://dvwi9lnoau63q.cloudfront.net/linear/instructions/212iLW_242iLW_Install.pdf