Mechanical and electrical scales and related accessories sold in connection therewith, namely, electrical adaptors, cable connectors, battery cables, electronic display interfaces, electric switches, electric relays, and electronic transmitters; specific gravity kits consisting primarily of hardware for use with a balance to allow weighing below the balance, or weighing an object in water; keyboards; scanners; digital weight indicators and remote displays, namely, indicator lights, light emitting diodes, liquid crystal displays, electronic display interfaces, wireless and electronic cable displays in the nature of electronic numeric displays; power systems, namely, battery pack, and electrical power supplies; calibration kits consisting primarily of test weights for use in balance calibration; laboratory testing equipment, namely, sample pans, planers, scoops, measuring bowls, weigh boats, test tubes and pipettes; computer software, namely, automation software, data collection software, and calibration software for scales; digital to analog converters; computer cables and computer network adaptors; antimagnetic shields in the nature of electrical shielding spacers for cables and cable assemblies; electrical controllers, namely, check weighing controllers, filler controllers, batch controllers, bulk weighing controllers and truck scale controllers; traffic lights; cable and wireless modems; antennas; vehicle loop detectors comprised of sensing devices which indicate the passage of vehicles approaching or passing over a scale; radio frequency identification card readers; electric scale attachments, namely, sorters, classifiers and counters used in conjunction with digital weight indicators and conveyors to sort, classify and count products by weight; intercom systems comprised of microphones, amplifiers and audio speakers, serial protocol converters; alarm sensors to prevent batch overflow; USB port to serial port converters; transient voltage surge protectors and electrical fuses for voltage surge protection; computer ethernet servers; electrical circuit bridge sensors; environmental enclosures, namely, structures specially adapted to protect scientific digital weight indicators from extreme temperatures, physical damage and corrosion; power inverters; voltage regulators; document printers; cases in the nature of enclosures specially adapted for use with document printers; bar code readers