Test your water in 3 seconds-green means safe, red means replace.

Tri‑Sense Accuracy™ delivers lab‑gradeTDS + EC + Temperature in one pocket‑sized pen. Leather case included.

  • Instant Color‑Pass™ LCD: green ≤ 40 ppm, red ≥ 40 ppm—no math, no guessing.
  • Titanium probe + Auto‑Temp Compensation for ±2 ppm precision.
  • Anywhere Pro‑Kit™: pen, batteries & premium sleeve ready out of the box.
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  •  Emily R., London ★★★★★

    “Finally a tester my kids can read. Green light, they drink. Red light, we change the filter—simple.”

  • Dr. Peter Walsh, Aquaculture PhD ★★★★★

    “Matches the readings of my £300 bench meter within 2 ppm.”

  • Luca M., Brighton ★★★★☆

    “Used it at the allotment to balance my hydroponic nutrients—spot‑on every time.”

FAQs

Is it really accurate at only £29.99?

Each unit is factory‑calibrated against a 342 ppm NaCl standard—the same protocol used for £200 lab meters. Accuracy ±2 ppm.

Can I test hot water?

Yes. Auto‑Temp Compensation corrects readings from 0 °C – 80 °C (32 °F – 176 °F).

How long do the batteries last?

Around 1,000 tests—roughly one year of typical home use. Standard CR2032 cells replace in seconds.

What if I drop it?

IP54 splash‑resistant housing + leather sleeve. Accidental‑damage coverage inside the 60‑day guarantee period.

Do you ship internationally?

UK & EU 7-10 days, US/CA 6–11 days. Duties prepaid, so no surprise fees.