pH/EC/TDS Meters & Solutions

Bluelab Conductivity Care Kit Kit

Bluelab Nutrient Probe Care Kit Conductivity

$30.74 $26.13

Bluelab Pen pH

Bluelab® pH Pen
Measures pH and temperature.

$126.14 $107.22

CES PH Up

CES pH Up™

Concentrated pH adjustment liquid, alkaline buffer raises water and nutrient solution pH. Highly concentrated, use conservatively. Slowly add to pure water or nutrient solution, at small intervals. Note beginning reading and then test pH. Re

$32.50 $33.60

Bluelab Meter Guardian

Bluelab® Guardian Monitor
Adjustable brightness display. Large easy-to-read, plant-safe green LED displays.

$445.20 $378.42

Bluelab 7.0

Bluelab® pH 7.0 Calibration Solution

$1.92 $1.69

Bluelab 4.0

Bluelab® pH 4.0 Calibration Solution

$18.90 $16.07

Bluelab 2.77

Bluelab® 2.77 EC Conductivity Standard Solution

$18.90 $16.07

GH pH Up

General Hydroponics® pH Up Liquid

$35.87 $34.09