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Bluelab Combo Meter
The Bluelab Guardian Monitor measures all three of the most critical parameters for successful growth: EC/CF, pH and temperature at one quick glance. The Guardian Monitor gives a constant indication of each level for each factor, making taking your readings much easier than the usual method of using two separate units.
By using one large and easy to read LCD display showing all three parameters at once you get more. The great feature about this monitor is the silent alarm: the display flashes to alert you when one of the parameters strays too far from the ideal.
The Guardian Monitor comes with a 2 year guarantee.
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