Description
Pocket-size waterproof TDS tester for checking total dissolved solids, such as checking RO/DI water before it is used for top-off or mixing salt.
- Range 0 to 2000 ppm, 1 ppm resolution, accuracy ±2% full scale
- Waterproof (IP67)
- Automatic temperature compensation from 32 to 122°F; shows TDS and temperature together
- Automatic one-point calibration at 1382 ppm
- Includes CR2032 battery, four 1382 ppm calibration sachets and a protective sleeve
Shipping See current rates and ship days.
Shipping & Returns
- Equipment and dry goods ship at their own rate. Free shipping at $349 or more applies to qualifying livestock only — corals, fish, inverts and live copepods. The $10 box & handling fee is a livestock packing fee and does not apply to dry-goods orders.
- All sales are final on equipment and dry goods. We are a retail store, not the manufacturer.
- Register your product with the manufacturer and keep your receipt — their warranty is how a faulty unit gets replaced, and they are faster at it than a shop could be.
- Not sure who to contact for a warranty claim? Call us and we will point you to the right place.
Ships from our Key West store · (305) 850-9949










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