Meters & Testers (13)

Bluelab PH Pen A hardy, compact pH and temperature pen. Teamed with our Bluelab ppm or EC Pen, you have a handy, convenient and accurate system for ensuring optimum plant...

pH Test Kit (Wide Spectrum) Measures 3-10 pH. The Hydroponic pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one...

COM-80: EC/TDS HydroTester Series The COM-80 is easily the most advanced economically priced, reliable EC/TDS meter on the market. With its versatility and durability, it is ideal for testing applications...

Bluelab pH Probe Dependable double-junction pH probe technology that's built to last Double-junction probe reduces reference contamination, extending longevity Fully waterproof - not just water resistant  BNC connector allows use...

HM Digital - PH-80: pH HydroTester The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums...

Quick Easy to use Economical 30 days warranty

Bluelab PPM Pen A robust handheld solution for measuring conductivity and temperature on the go. To make sure the plants can get at the food, you need to measure the...

Alfred Digital pH / Temperature Water Resistant Tester The pH-1 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools &...