Extech ExStik Waterproof pH Pen Replacement pH Module

Replacement pH module for the ExStik 4-in-1 pH, Chlorine, ORP, Temp Kit.

Oakton Double Junction Waterproof pHTestr 30

$151.77

Oakton pH Calibration Singles, Assortment, 20 ml Pouches, Box of 20

From $42.43

Oakton PC2700 Meter w-pH Electrode, Conductivity-Temp Probe, and Electrode Stand

$1,798.17

Oakton Temperature Probe

$67.30