The HI98129 is an advanced, waterproof pH, conductivity, and TDS (ppm) tester that makes measuring quick and easy.

This lightweight, waterproof pH and TDS (ppm) tester offers accurate pH, conductivity (0 to 3999 µS/cm), TDS (0 to 2000 ppm), and temperature measurements in a single, portable, pocket device. No more switching between meters for your routine measurements.

See all combo pH, EC, and TDS (ppm) testers.

Compact & waterproof design fits right in your pocket so you can take it anywhere.
Replaceable pH electrode extends the life of your tester for years.
Great for hydroponics, aquariums, pools, & ponds.

The COMBO formula also includes a 20 ml sachet starter kit:

– 1x pH replaceable Electrode
– 1x Electrode removal tool
– 1x pH 4.01 buffer solution sachet
– 1x pH 7.01 buffer solution sachet
– 1x 1413 µS/cm conductivity standard sachet
– 1x 1382 ppm TDS standard sachet
– 1x pH Electrode cleaning solution sachet
– 1x pH Electrode storage solution sachet
– Batteries
– Instructions