Bluelab Guardian Monitor

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Standard Delivery £6.95*
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Bluelab Guardian Monitor


The Bluelab Guardian Monitor measures pH, conductivity and temperature. It is a constant indicator of the desired levels of pH, EC/ppm 700/TDS/CF and temperature, enabling you to optimise these critical parameters through each growth stage. 

It has a large easy to read display. It is mains powered and can be mounted to the wall or hung on a support with the probes simply placed into the reservoir.

The Bluelab Guardian Monitor monitors 24 hours a day and has the ability to set high and low alarms, a flashing display lets you know when one parameter moves from the ideal, allowing you to make quick and effective adjustments.


  • Plant-safe green LEDs
  • For pH calibration simple push button. No calibration is required for conductivity and temperature.
  • Selectable values for conductivity and temperature
  • Replaceable double junction pH probe
  • Adjustable display brightness
  • Water resistant design
  • Non-volatile memory
Product Details
Brand Bluelab
Delivery & Returns

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