Weighing apparatus and instruments; Apparatus for testing gas, liquids and solids; Carbon dioxide feeders for treating water by automatically injecting a predetermined concentration of carbonic acid solution for pH control ; Digital pH meters; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Measuring apparatus for temperature and humidity levels in gases and solid substances; pH meters; Soil sampling equip...

Computer peripheral devices; Loudspeakers; Headphones; Cables, electric; Wires, electric; Materials for electricity mains, namely, electricity conduits; Switches, electric; Electrical plugs, sockets and contacts; electrical adapters; Galvanic cells; Battery chargers; Galvanic batteries; Batteries, electric; Solar batteries; solar panels for the production of electricity; Rechargeable electric batteries