The Corby Digital Key consists of a 12 digit keypad and an on board electronics module. The Digital Key requires a four or five digit access code to be pressed in an exact order. Unlike other imitators, the Corby Digital Key uses true "Out of Sequence" error detection that demands exact entry of the operating code. Any deviation from the correct sequence instantly resets the unit. More than 95,000 different code combinations are possible with the Corby Digital Key because of the twelve digit keypad. Digital Keys that use less than twelve digits cannot provide the same level of security.

Setting the user code is simple, reliable, and takes only seconds. Choose a four or five digit operating code and plug the supplied jumper wires into the "code bank". Panic and zone control codes are also programmed using this method. Codes cannot be lost due to power failure or disturbances. Command seven additional security functions or devices from every 7000 Series Corby Digital Key. Any two buttons may be selected for panic, zone control or auxiliary functions. As an example, zone shunting enables the user to turn on or off certain security areas without affecting the total security system.