pH/EC/TDS Meters & Solutions

Hades Down

HI7061-023 is the GroLine general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna's cleaning solutions eli

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

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

General Hydroponics® pH Down Liquid

Keep your nutrient solution in the sweet spot with Emerald Harvest® pH Up. A pH reading below 5.5 is considered too acidic for most hydroponic gardens. This premium pH alkalizer allows you to raise the pH of your nutrient solution.

Features:
• Measures pH, conductivity (EC and 500ppm/700ppm) and temperature (5-in-1)
• Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH/EC Combo
• Premium probe technologies and materials ensure high accuracy and durability with

Bluelab® pH Probe KCI Storage Solution

The HI1285-9 inline multiparameter probe measures pH, EC/TDS, and temperature in one convenient, rugged probe. Use with the HI981421 GroLine Monitor to provide around-the-clock, continuous monitoring of pH, conductivity (EC & TDS), and temperature in hydr

HI7004-023 is a high quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof

PH UP
When Your pH Is Too Low, You Need pH-Up
-- The Highest Concentration in Hydroponics!

PH DOWN
When Your pH Is Too High, You Need pH-Down
-- The Highest Concentration in Hydroponics!

Bluelab Original Truncheon® Nutrient Meter

Bluelab Replacement pH Probe

Bluelab® Probe Care Kit for Conductivity Probes

Bluelab® ppm Pen — Now Bluelab® Conductivity Pen

Bluelab® Multimedia pH Meter with Leap™ pH Probe

Bluelab® Combo Meter

Bluelab® Guardian Monitor Connect In-Line