Electric or electronic sensors, namely, sensors for collecting and/or analyzing physical and/or chemical quantities of light, pressure, speed, flow, acceleration, temperature, moisture, gases, gas concentrations, gas compositions; measuring and testing equipment for physical and/or chemical quantities of light, pressure, speed, flow, acceleration, temperature, moisture, gases, gas concentrations, gas compositions, namely, gas detectors for detecting the presence of gas, gas meters, gas sensors for measuring gas concentration, gas testing instruments, residual gas analyzers; apparatus and equipment for identifying, locating, surveying and testing of objects, namely, 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, scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants, apparatus for testing gas, liquids and solids, high-pressure pumps for proportioning and testing purposes

Photographs; printed teaching and instructional material in the form of printed matter, games, models, wall boards, drawing and presentation equipment in the field of gas analysis, gas warning and environmental protection

Computer programming; product development, namely, development of electro-technical and/or optical apparatus and equipment, in particular in the field of measuring and analysis technology and control engineering for others; engineering services, namely, design for others in the field of environmental engineering, designing and testing of new environmentally friendly products for others; technical consultancy, namely, in the field of environmental science