Megatronix KP20 Illuminated Digital Keypad Starter Kill Immobilizer Security System Illuminated digital keypad immobilizer for 12 volt or 24 volt use (Must notify with order if application is 24 volt to receive proper relay) Automatic arming 30 seconds after ignition turned off Programmable single code 4, 5, or 6 digits in length Up to 1,000,000 possible combinations Starter kill relay and socket included