Multi Item Monitors & Controllers for Saltwater Aquariums, $5-$35

Aquarium supplies for your fish tanks, reef tanks and water gardens.

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HM Digital Handheld TDS Meter w/ Thermometer

Handheld TDS Meter 0-9990 with ATC & Temp, in vinyl carrying case The world’s most popular TDS meter, the TDS-3 is the most reliable and longest lasting meter of its kind. It has a wide range of 0-9990 ppm has a hold button...

$24.99

HM Digital Pocket-Sized TDS Meter w/ Thermometer

Pocket Sized TDS Meter w/ digital thermometer in aquarium-specific packaging. The world’s smallest and lightest TDS meter also comes with a built-in digital thermometer. It is a true pocket size meter, comfortably fitting into...

$24.99

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