Bluelab Meters and Monitors

Understanding the nutrient solution is an important part of successful growing. Growth Technology’s accurate range of Bluelab meters and testing equipment make this task quick and easy.

Bluelab pH Controller®

Hands-free monitoring and dosing of solution pH levels. Simple.

It’s known that pH levels can be the difference between a great crop and a disaster. Measuring and adjusting nutrient solution levels constantly can be very time-consuming.

The Bluelab pH Controller automatically monitors and fine-tunes pH levels. It needs only to be simply set and the pH is taken care of.


  • Automatic control and monitoring of system pH with reservoirs up to 200 US gal / 760 L
  • Plant-safe green back lit LCD with adjustable brightness
  • Large, easy to read displays
  • Easy to navigate menu to program and adjust settings
  • Simple push button pH calibration with on screen guide
  • Flashing high / low alarm with control lockouts
  • Dosing lockouts to protect from over-dosing
  • Auto resume dosing on restart after power loss
  • Water resistant, wall mount design
  • 13 foot (4 meter) acid/alkali resistant dosing tube supplied
  • Use with undiluted Bluelab pH Up or Down
  • International power supply
  • Replaceable double junction pH probe
  • Separate Bluelab Temperature Probe (for pH ATC)
  • Replaceable peristaltic pump and tubes


2 year guarantee for Bluelab pH Controller and Bluelab Temperature Probe
6 month guarantee for Bluelab pH Probe
(we advise customers to retain proof of purchase date)

Plant Lifecycle

Early Grow Grow Bloom

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