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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
• 2-Year Manufacturer’s Warranty
Easy to use, just plug it in and place the probes in your nutrient reservoir.
With this quality instrument you have the ability to set high and low alarms — a flashing display lets you know if one parameter moves away from the ideal — so you can have peace of mind and ultimately more time in your day!