The CORBY-7066 is an outdoor, programmable, heavy duty keypad that can control up to seven additional security devices. The unit is flush mounted with heavy duty keys that make the unit suitable for all environments. The 7066 provides a high level of securtity with over 95,000 different four or five digit code combinations.One red and one green LEDs inform users of status conditions. New features include increased voltage from 6 to 24 VDC and "Out of Sequence" error detection.