AERO-GRO Digital 4-in-1 Water Quality Testing Kit – High Accuracy Digital pH/TDS/EC/Temp Pen Set Perfect for Hydroponics, Pools, Koi Ponds, Drinking Water, Wine/Beer Making, Hot Tub, Spa, Aquarium Price: $44.99 (as of 26/05/2023 10:12 PST- Details) & FREE Shipping.

[Reliable + Accurate] – High-quality sensors and temperature compensation for accuracy and reliability. Automatic temperature compensation (ATC) ensures accuracy in all testing modes.
[TDS and EC] – Measure PPM and pH in hydroponics, aquarium, pools, water, wine making, and more. Kit includes buffering powders and video instructions for recalibrating the pH meter.
[pH Meter] – Measure the pH of any liquid from 0.00 -14.00. Meter features Automatic Temperature Compensation (ATC) and can be calibrated with the included buffer powders. A detailed how-to video on the aero-gro website explains the recalibration procedure.

In Stock.