Kussmaul Electronics Model 091-155, Safety Lock 3Condition:* New Surplus Stock, In OEM Packaging. As Pictured.Additional Notes:* Three Relay* Activated When Ignition Key Removed* When Activated, Engine Remains On And Shuts Down Automatically If Controls Are Manipulated In Attempts To Move Vehicle* Safety Lock Override/Re-Start When Ignition Key Is Inserted* Input: 12 Volt DC* Contact Rating: 3 Relays, 30 Amp Each* Installation And Wiring Instructions IncludedKussmaul ElectronicsModel 091-155