Meters & Testers

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...

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...

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...

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 &...

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

Nutradip Growboss NEW and Improved Features Include: PPM Probe is now manufactured and assembled in Canada. Standardized epoxy grade increased = increased water proofing capabilities. New robust power supply provides...

HANNA HI 98107 PHEP PH / T° TESTER pHep pH Tester• Waterproof• Extractable cloth junction to extend pH electrode life• Built in temperature sensor for Automatic Temperature Compensated measurements• Automatic...

HANNA HI 98301 DIST1 TDS TESTER The Hanna Instruments HI98301 DiST 1 is a low-range total dissolved solids tester than can measure up to 2000 ppm (mg/L).The DiST 1 is...

Bluelab Combo Meter Measure pH, conductivity and temperature on the go. Measures pH, conductivity and temperature on the go Brilliantly simple design that’s easy to use, clean and calibrate Backlit...