Hanna
TDs Tester Hi98301
$149
Ships Australia-wide1 in stock
Dry goods ship Australia-wide with fast dispatch from Eastwood — or collect in store with the rest of your order.
SKU 5433188
SKU 5433188
Paid securely at checkout · ships Australia-wide (or collect in store)
Added — collect in store at Eastwood
- Ships Australia-wide — fast dispatch from Eastwood
- Or collect in store with the rest of your order
- Genuine stock — marine specialists since 2012
Overview
The Hanna TDS Tester HI98301 is a handheld digital meter used to measure total dissolved solids in water, giving you a quick, reliable way to check the purity of your RO/DI output or top-up water.
Confirming your RO/DI water is actually producing low-TDS output is essential — a rising TDS reading is often the first sign that your membrane or DI resin needs attention.
Key features
- Digital TDS readout for quick, accurate checks
- Handheld, portable design suited to regular spot-checking
- Hanna build quality, well regarded for reliability
Who it's for
Anyone running an RO/DI system who wants to monitor water purity and catch membrane or resin exhaustion early, regardless of tank size.
Setup & tips
- Test your RO/DI output regularly to track TDS trends over time
- Rinse the probe with RO/DI water before and after testing to avoid contamination
- A rising TDS reading is a good early signal that it's time to replace your membrane or DI resin



