9 Electrical apparatus and instruments, namely, measuring transducers, electrical communication transmission units, data processing equipment in the nature of data recorders, data encoders, data transducers, processing computers and structural parts therefor, programmable controls and switching units for use in heating, ventilation, air conditioning and building automation systems; measuring, signalling and control apparatus, namely, burner control and flame control units for oil and gas burners; control units for heating installations; electrothermal and pneumatic controls for regulating elements and valve drivers, thermostatic and electronic radiator regulators, thermostatic radiator control valves; electricity meters, gas meters, water meters and heat meters and their structural parts; meter testers; calibration stations and their structural parts; electrical and electronic telecontrol, telecounting, telemetering and ripple control equipment, namely, energy accounting, control and monitoring units, meter reading units, communication units for remote reading, supervision and control of metering points, hand-held computer units for mobile data acquisition, ripple control transmitters and ripple control receivers; timer switches in the nature of electronic timers; electrical solid state and semiconductor components and microelectronic components, namely, magnetic field sensors; integrated circuits, thermoelectrical, piezo-electric, and hall-effect elements and components; printed circuit boards; permanent magnets; components for electrical installations, namely, switches, relays, transformers, distribution boards, terminals; electronic readers for magnetically coded cards and distribution boards, terminals; electronic readers for magnetically coded cards and for smart cards; electronic optical readers for optically coded cards; software for use in energy management, energy customer management, energy data acquisition, data transmission and data analysis, customer data acquisition, energy marketing and trading, reporting, tariff design, calculation and billing of energy costs and administration of customer processes in electricity, gas, water and heat supply networks; electrical, electromechanical and electronic measuring, control and regulating equipment for non-electrical quantities and their structural parts, namely, temperature regulators, pressure regulators, moisture regulators, density regulators and height filling regulators; measuring, control and regulating equipment for heating, ventilation and air conditioning systems and their structural parts, namely, heating, ventilation and air conditioning control units and actuators; heat detectors and UV sensors, flue gas testers, oxygen probes and leak inspection detection units for gas valves, flame monitors and ultraviolet sensors; building automation installations, namely, programmable microprocessor systems comprising an operator's unit, operator's interface, report printer, and electronic terminal strips which by optical, photographic, mechanical electrical and electronic means supervise, control and regulate lighting, heating, ventilating, steam generating, cooking, cooling, drying, air conditioning, sanitation, signalling and recording; fire alarms, burglar alarms and motion detectors and leak detectors and sensors for use therewith; video cameras for surveillance purposes; fire extinguishers; automatic vending machines; money changing and banknote verifying machines; telephone equipment, namely, coin and card-operated telephones; identification and authentication of documents and cashless payment means, namely, chip cards, magnetic coded cards and optically coded cards and card reader units for reading and accepting such cards