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The salinity (salt contents) can be deduced from the measured density
and proteins
nitrite & nitrate
For best results
The Phos Pad is not a substitute for regularly scheduled aquarium maintenance
HM Digital Handheld TDS Meter Detoxifiers The salinity (salt contents) canThe TDS 4TMA handheld meter is ideal for testing TDS and salt levels of freshwater aquariums and ponds. It can also be used for testing water filtration and purification systems, such as RO and DI, to know when to changes filters and membranes. FEATURES Measures TDS and salt levels of freshwater up to 9990 ppm. Includes an internal digital thermometer (celsius only). Hold Function Locks the reading on the screen outside of the water. Auto off function
