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Did You Know?

Water is a universal solvent and dissolves more substances than any other liquid.

HM Digital

HM Digital is recognised around the world for providing water testing equipment. The TDS (Total Dissolved Solids) meter tests for charge ions, including minerals, salts or metals dissolved in a given volume of water. This is directly related to water purity and is often used for testing aquarium systems as well as reverse osmosis water purification systems.





HM Digital Dual TDS Meter Monitors In & Out DM-1
Price:
$54.95

Save:
$44.05  (44%) off RRP


HM Digital Commercial Dual EC Monitor DM-2EC
Price:
$84.95

Save:
$24.05  (22%) off RRP


HM Digital Hand Held TDS Meter Water Test ZT-2
Price:
$25.95

Save:
$7.05  (21%) off RRP





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