TDS Meter

$29.00 Pre-order
Pay in full · save 5%
How would you like to pay?
$14.50 today · $14.50 charged automatically to the same card before your order ships · within 14 days of your order.
How the pre-order works. Pay the deposit now. We email you first, then the balance is charged automatically to the same card before your order ships. Cancel any time before dispatch for a full refund. Want to add to it later? Message us before it ships and we’ll add it to this order — you won’t pay postage twice.

Pre-order saving · 5% off when you pay in full

Pre-order — this line is between batches. Order now and we'll ship when the next batch is ready.Most pre-orders ship sooner — 14 days is the longest you'd wait.

Description

A TDS meter is a pen-style electronic meter that reads total dissolved solids, everything dissolved in the water added together, in parts per million (ppm). It works by measuring how well the water conducts electricity. It cannot tell you what is dissolved, only how much, so it does not replace a GH or KH test. Its strength is speed, which makes it a convenient way to notice change between water changes.

Key Benefits

  • Instant reading with no reagents or colour charts
  • Quick check that new water matches the tank before a water change
  • Shows drift over time, a prompt to look closer with other tests

Usage & Instructions

Remove the cap, switch on, dip the probe into the water to the marked depth and wait for the number to settle. Rinse the probe in clean water and dry it after use. Check the meter against a calibration solution from time to time and adjust as the maker's instructions describe.

Risk & Awareness

Two water samples with the same TDS can have very different GH and KH, so do not use the meter on its own to judge whether water is right for moulting shrimp. Readings drift if the probe is dirty or the battery is low.

Delivery & returns

Dispatch & delivery

Check our shipping policy for dispatch and delivery information.

Check before opening

Opened products cannot be returned for change of mind. Check the item and its compatibility before opening or using it. For unopened change-of-mind requests, see our refund policy.

Use safely

Follow the product instructions, recommended dosage where applicable, and compatibility guidance. Damage caused by misuse is not a product fault.

If something is wrong

Contact us with your order details and a description of the issue. Keep the item and packaging where practical so we can assess it.

These conditions do not exclude or limit your rights under the Australian Consumer Law, including remedies for faulty, damaged or misdescribed goods. A request for prompt contact or photos does not impose a time limit on those rights.

Read our refund policy →