Smart electric, gas and water meters; watt-hour meters being a type of wattmeter; wattmeters; voltmeters, ammeters; frequency meters; electric meters; gasometers; water meters; capacity measures being electric or magnetic meters and testers for measuring error for electric, gas and water meters; power distribution or control machines and apparatus in the nature of power distributing boxes; electric transformers; current transformers being a type of electric transformers; telecommunication devices and apparatus in the nature of telephones, modems, repeaters, radio frequency and wireless communication products, namely, wireless network energy management systems comprised of smart electric, gas and water meters, optical ports, computer hardware, energy management computer software, modems, transmitters, receivers and network interfaces; electronic machines and apparatus in the nature of energy management and measuring devices being smart electric, gas and water meters, energy management computer software, modems, transmitters, receivers and network interfaces and home energy monitors and their structural parts

Repair or maintenance of measuring or testing machines and instruments