M MASELLI

Refractometers; scientific, weighing, measuring, signaling, checking and supervision apparatus and instruments, namely, spectrophotometer, technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids, scientific instrumentation for measuring concentrations of chemicals in water, electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality, sound level meters, liquid analyzers, carbon dioxide detectors, liquid level sensors, electrical integrated control systems for use in the field of waste water treatment, scientific apparatus for use with membrane filtration, namely, water filter controllers, scientific instrumentation for measuring chemical levels in water, not for medical use, sensors for measuring chemical levels in aqueous solutions, not for medical use