Apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity, namely, electrical interface units for ex and non-ex areas; transmitters, namely, electric interfaces; electronic signal transmitters, for 2- and 3-wire transmitters for galvanic isolated, current-, voltage-, and power-limited signals transmissions; multiplexers; demultiplexers; isolation transducer in the nature of electrical transducer; electric operators for valves, namely, interfaces units for controlling and operating valves in ex and non-ex areas; measuring transducers in the nature of electrical transducers; limit switches in the nature of electric switches; switch amplifiers, namely, electrical interfaces units for ex and non-ex areas; isolation barriers, namely, electrical interfaces units for ex and non-ex areas; Zener barriers; electronic signal isolators for protected signals transmission by galvanic isolation; fieldbus infrastructure for industrial plants containing a fieldbus power supply, diagnosis modules, appliance couplers for ex- and non-ex areas, segment couplers, fieldbus/profibus Power Hub, segment protectors, field barriers, valves and sensor connections; remote I/O systems for potentially explosive areas in the zones 1 and 2 containing backplane, bus couplers, I/O modules; Highway Addressable Remote Transducer (HART) for construction of industrial fieldbuses, namely, electrical transducers; pressurized enclosure systems in the nature of computers containing a housing with control device for pneumatics, electrical inputs/outputs, programming interface and display, pressure controllers, valve/valve block; computerized operating stations containing monitors, panel PC, network remote monitors, industrial thin client and peripheral devices, operator terminals as well as computer peripheral devices; electrical connector systems; electrical distributors in the nature of apparatus and instruments for distributing electric current; electric installation devices; electrical terminal boxes; command and signalling devices, namely, computers, containing push-buttons, LED indicating lamps, control switches, potentiometers, amperemeter, signalling lamps and signalling devices; the aforesaid goods especially for the use in potentially explosive areas

Organisation of seminars, training, continuing education courses and lectures in the field of technical measuring in explosive areas, namely testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentrations of substances

Conducting of technical measuring in explosive areas, namely, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentrations of substances; monitoring of electrical installations for the remote control of industrial operations; technical controls and inspections in the nature of quality control