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; electric or electronic control systems for gensets; electronic devices, namely, controllers for internal-combustion engines and/or turbines; electronic devices, namely, controllers for nautical, traction and aviation applications; electronic devices, namely, controllers for independent power generation; electronic control systems for controlling computer technologies, namely, Automatic Transfer Switch controllers, gen-set controllers, generator controllers, engine controllers, industrial engine controllers, marine engine controllers, mobile and off-road machinery controllers, a dual-fuel control system package comprising 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/or monitoring systems for diesel engines