9 Cell culture instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for laboratory use; chemistry apparatus and instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for use in the fields of life science research, biomedical research, environmental contaminants monitoring, food testing and diagnostic applications.; sensors, namely, photometric measurement sensors using DNA and other biological and diagnostic materials, namely, antibodies, enzymes and chemical reagents for the use with scientific apparatus and instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer; detecting instruments for the detection of Proteins, RNA, DNA, ions, cell count, tubidimetry and colorimetric assays and fluorescent assays, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer, other than for medical use;diagnostic testing instruments for testing of water samples, biological samples, environmental samples and patient samples, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for use in immunoassay procedures other than medical procedures; instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for scientific research; instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for scientific use in testing microbiological samples; teaching instruments, namely, a photometer, spectrophotometer, fluorimeter, turbidimeter, reflectometer, luminometer for teaching use in experimental classes for chemistry, chemical engineering, biomedical engineering, environmental sciences and biochemistry classes