Computer software for use in operating and monitoring generator and engine controllers; electronic devices, namely, mains decoupling relays, utility protection relays, integrated circuit modules, battery chargers, electronic potentiometers; electronic controls and electronic monitoring systems for engines comprised of electrical controllers, electric or electronic control systems for gen-sets comprised of electrical controllers; electronic devices, namely, controllers for internal combustion engines and turbines; electronic devices, namely, controllers for nautical, traction and ground support aviation applications; electronic devices, namely, controllers for independent power generation; electronic control systems for controlling computer technologies, namely, electrical automatic transfer switch controllers, gen-set controllers, generator controllers, engine controllers, industrial engine controllers, marine engine controllers, and mobile and off-road machinery controllers; control systems for renewable energy comprised of electric control devices for energy management; a dual-fuel control system package comprising electrical controllers in the nature of a bi-fuel control unit, a dual fuel module for fuel control and monitoring, and an anti-knocking controller; engine measurement sensors, electronic monitor modules for monitoring electric current and electrical signals, modems; electronic control and monitoring systems for diesel engines comprised of electronic control systems for diesel engines