PLEASE NOTE: Hy-Gen pH DOWN and UP are classed as dangerous goods, and as a result we can only offer Click & Collect or Local Delivery. An alt...

Hy-Gen Calibration solution comes in 2 types, 4.0 and 7.0 Hygen pH Buffer is the upper calibration point in the "two-point" calibration of electron...

Key Features• Measures pH and temperature• Selectable units for temperature• Backlit LCD display• Double junction probe (not replaceable)• Succes...

Improve longevity with KCl How to care for your Bluelab pH products Your pH probe is a sensitive glass instrument that ages through everyday use. I...

The World’s favourite conductivity meter. Simply brilliant, brilliantly simple! It is essential when growing with a hydroponic solution to KNOW w...

PLEASE NOTE: Hy-Gen pH DOWN and UP are classed as dangerous goods, and as a result we can only offer Click & Collect or Local Delivery. An alt...

pH instruments must be cleaned and calibrated at least monthly to provide you with the most accurate reading. pH measuring equipment is calibrated ...

pH instruments must be cleaned and calibrated at least monthly to provide you with the most accurate reading. pH measuring equipment is calibrated ...

PLEASE NOTE: Hy-Gen pH DOWN and UP are classed as dangerous goods, and as a result we can only offer Click & Collect or Local Delivery. An alte...

Easy to use PH test kit to keep your plants at their best and always handy to have as a backup.

Professors Organic pH Down is designed to decrease the pH level in your nutrient solution. If the pH is not sitting within acceptable range, you ar...

The ultimate handy solution for measuring conductivity (EC or ppm) and temperature! The Bluelab Conductivity Pen simply tells you that your pl...

Flairform's PH Down is made from Citric Acid, and allows you to adjust the pH level of your nutrient solution. 

EC Calibration solution used to calibrate your Aquamaster EC Pen!

Buffer CF 2.76 250ml, a great solution for checking the accuracy of your EC Pens!

A digital hydroponic testing meter for measuring water’s acidity, alkalinity, electrical conductivity (EC), total dissolved solids (TDS), temperatu...

AZ Waterproof pH pens raise the bar in ease of use, reliability, function and price point. AZ meters provide a big IP65 LCD screen with dual pH and...

Hy-Gen Calibration solution comes in 2 types, 4.0 and 7.0 Hygen pH Buffer is the upper calibration point in the "two-point" calibration of electron...

The P50 Pro pH Temp meter, designed for various industries, serves as the optimal handheld digital device for assessing the pH and temperature a va...

Boost accuracy with regular cleaning  How to care for your Bluelab EC products If you want to ensure the ongoing accuracy of your Bluelab conductiv...

P700 Pro 2 combo meter pH, EC, CF, PPM, Temp. The P700 Pro 2 Combo meter provides uninterrupted monitoring, ideal for gauging the pH, EC, CF, PPM, ...

P160 Pro pH, EC, TDS, PPM, and Temp meter The Combo Pen P160 Pro stands as the top-tier, user-friendly digital handheld meter from AquaMaster, equi...

The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution.

Always On. Being There Optional. Monitor your reservoir pH, Conductivity and Temperature with alerts on your phone when using the Wi-Fi capable Blu...