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TDS / EC / PPM Testers & Meters

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Bluelab Truncheon® Nutrient Meter
Bluelab Truncheon® Nutrient Meter The World’s favorite conductivity meter. Simply brilliant, bril..
$185.99 $165.99
Bluelab® 2.77 EC Conductivity Standard Solution 500mL
Bluelab® 2.77 EC Conductivity Standard Solution (1385ppm 500 / 1940ppm 700) (at 250C) Is your ..
Bluelab® Combo Meter - FREE SHIPPING*
Bluelab Combo Meter It's all you need for simple and reliable crop management. The Bluelab Com..
$375.99 $329.99
Bluelab® PPM Pen
Bluelab® ppm Pens The ultimate handy solution for measuring conductivity (ppm) and temp..
$140.99 $110.99
Grotek 1000ppm TDS Calibration Solution 500mL
TDS Calibration Solutions 1000ppm TDS Calibration Solutions are available for all of your..
Grotek PH Electrode Cleaning Solution
Grotek Electrode Cleaning help maintain your pH meters. These solutions are easy-to-use. Simply subm..
HM Digital - TDS/EC Meter - Hydrotester COM-80
HM Digital - TDS/EC Meter -  Hydrotester COM-80 The COM-80 is an economically priced, reliable..
HM TDS-3 Handheld TDS Meter with Carrying Case
HM TDS-3 Handheld TDS Meter with Carrying Case With its rugged design and build, the TDS-3 is an ..
Hydro-Logic TDS Inline Monitor
Hydro-Logic TDS Inline Monitor TDS Pro - in/out PPM monitor with 1/2" inlet and 3/8" outlet Meas..
NutraDip AC|DC Nutrient Meters PPM - FREE SHIPPING*
  Nutradip Nutrient Meters are the reliable way to measure the strength of your gardens nutr..
The Nutradip GrowBoss is the meter you have always wanted. This meter didn't happen by accident, ..
Nutradip pH Meter AC|DC - FREE SHIPPING*
  Nutradip pH Meters are the reliable way to measure the acidity of your gardens nutrient su..
TDS Calibration Solution 1000 ppm
TDS Calibration Solutions are available for all of your TDS meters. Each solution is made with ..
TDS Dual Inline Monitor
Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conse..