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Bluelab Guardian Monitor (used)

In just one glance the Bluelab Guardian Monitor measures all three critical parameters for healthy plant growth; pH, conductivity and temperature. 

• 'Plant Safe' green LED display 
• Selectable values for conductivity and temperature 
• Simple push button pH calibration 
• No calibration required for conductivity and temperature 
• Silent alarm for both high and low settings 
• Automatic temperature compensation 

Easy to use, just plug it in and place the probes in your nutrient reservoir. 

Battery and probes included.
  • Availability: 1 In Stock

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