Luster Leaf Digital Soil pH Meter measures pH levels with a stainless steel probe.
Batteries included

Luster Leafs Rapitest Moisture Meter instantly indicates when plants need water, how much light plants are receiving and no batteries are required.

HI7031L is a premium quality 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution.

GH pH Up Pro is a premium solution for maintaining and raising a nutrient's pH level. Base formulated using potassium hydroxide and potassium carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.

Hanna pH/PPM Meter HI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics and greenhouses.

Green Gold Solutions help keep your meters in good working order. Always make sure your electrode is kept in an electrode storage solution. If dry, refill the pH meter cap. Solutions are compatible with most testers.

The Bluelab pH Pen will quickly and accurately measure your hydroponic solution’s acid/ alkaline balance. Use to maximize plant nutrition and ensure optimum plant health, growth and yields.

Alfred Digital pH/Temperature Water Resistant Tester is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.