Data processing apparatus; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Transmitters of electronic signals; Infrared detectors for use in military, law enforcement, civil, scientific and industrial applications; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Panel meters, namely, an electronic instrument that displays an input signal in either a digital or analog form; Surveying instruments; Flowmeters; Pressure measuring apparatus; Electronic ultrasonic test equipment, namely, ultrasonic flaw detectors, thickness testers and hardness testers, for non-medical use; Temperature indicators; Apparatus for recording distance; Telemeters; Galvanometers; Electro-optical instruments for use in inspection and measurement of industrial components; Air analysis apparatus; Calorimeters; Electronic inductors; Nanoparticle size analyzers; Height measuring instruments