For construction equipment, forklifts, cranes, and personnel carriers, Start-Smart replaces ignition key with vandal- and tamperproof, metal piezo keypad tested to military standards. Solid-state keypad requires users to input code and press start or stop button to perform respective engine functions. Antitheft version is also available, which includes wireless relay—hidden in ignition, starter, or fuel pump circuit—that prevents vehicle from being hotwired.