WATALK

Apparatus for testing gas, liquids and solids; optical sensors; sensors being measurement apparatus, other than for medical use, namely, apparatus for recording data, sound and images; non-contact measuring apparatus, namely, LIDAR apparatus; non-contact measuring apparatus for measuring distance and liquid levels, namely, distance measuring apparatus and liquid level sensors; water quality meters, namely, electronic-based instruments for measuring water quality; water quality measuring apparatus, namely, scientific water quality measurement instrumentation for measuring chemical levels in water; apparatus and instruments for measuring and analyzing water quality, namely, electronic-based instruments for measuring water quality, scientific instrumentation for measuring concentrations of chemicals in water, sensors for measuring concentrations of chemicals in water, water testing instrumentation for monitoring and detecting contamination; liquid detecting sensors for detecting the presence of liquids, not for medical purposes; precision measuring apparatus for testing hazardous substances, namely, water testing instrumentation for monitoring and detecting contamination