Analytical and measuring apparatus and instruments; analytical and measuring machines and instruments for water quality or solution; water quality meters or testers; pH meters and testers; ORP (oxidation reduction potential) meters and testers; ion meters and testers; conductivity meters and testers; resistivity meters and testers; salt meters and testers; TDS (total dissolved solids) meters and testers; electrodes for water quality or solution analysis; glass electrodes for water quality or solution analysis; pH electrodes for water quality or solution analysis; ion selective electrodes for water quality or solution analysis; sensors used for water quality or solution analysis; transmitters used for water quality or solution analysis; assemblies used for water quality or solution analysis; accessories used for water quality or solution analysis; electrode holders

Analytical and measuring apparatus and instruments, namely, water quality testing instrumentation for monitoring and detecting physical and chemical characteristics of water, ph meters and testers, apparatus for water quality or solution analysis with measurement and testing of oxidation reduction potential (ORP), ion meters and testers, conductivity meters and testers, salt meters and testers, total dissolved solids (TDS) meters and testers, electrodes used as parts of water quality or solution analysis apparatus, sensors used for water quality or solution analysis apparatus, assemblies used for water quality or solution analysis apparatus, accessories used for water quality or solution analysis apparatus, combined meters and testers for water quality or solution analysis, compact meters and testers for water quality or solution analysis.

Coloured markers; Felt markers (writing instruments); Fibre markers; Fluorescent markers (highlighter pens); Markers (writing instruments) for textile fabrics; Page markers; Text markers (highlighter pens); Text markers (pens); Wipe-off boards for use with markers