Corby CORBY-4020 System Keypad - Indoor Single-Gang - 2 LEDs JMAC# CORBY-4020 The Corby 4020 is an indoor electronic keypad, featuring red and green LEDs and a 4000 series control board. Includes flush mount plate and installs easily into optional tamper box. UPC: 769586040205Also known as: CY-4020 Technical Specifications: MSRP: Was: Now: $69.75 Add to Cart