Apparatus for testing gas, liquids and solids; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Fine dust analyzing apparatus; Fine dust measuring apparatus; Portable dust measuring apparatus; Portable ultrafine dust measuring apparatus; Scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; Scientific instruments, namely, electron...

Apparatus for testing gas, liquids and solids; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality; Fine dust analyzing apparatus; Fine dust measuring apparatus; Portable dust measuring apparatus; Portable ultrafine dust measuring apparatus; Scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants; Scientific instruments, namely, electron...