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pH Testers
pH — the acid content of a solution — affects a plant’s ability to absorb nutrients. Make sure your nutrient solution is in the proper range for maximum growth with a professional-quality, easy to-read pH meter. Our selection of the best testers available assures you’ll find one to meet your growing needs… and budget.
Pssst… Looking for Soil Test Kits? We’ve got `em!
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pH Pen
$114.95Use to accurately measure your nutrient solution’s acid/ alkaline balance.
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Combo Tester (HI98129)
$213.95Offers highly accurate results with an easy to read LCD and automatic shut-off.
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Spare Electrode (HI73127)
$78.95If your equipment is not working, you may need a new part, not a new device.
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Test Kit
$7.95Easy to use, accurate and inexpensive! Just a few drops is all it takes for fast results.
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Combo Meter
$309.95All you need for simple and reliable crop management and it’s all within arms reach.
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Soil Pen
$184.95Provides a fast and accurate measurement of soils and growing media.
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Champ (HI98106)
$64.95An innovative, yet affordable pH pen designed for highly accurate measurements.
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CheckeråÊ(HI98103)
$44.95Provides fast and highly accurate results with an easy to read LCD display.
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Combo (HI991404)
$259.95Continuously monitors the three most crucial nutrient ranges in hydroponics.
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Continuous Indicator (HI981404N)
$224.95Ideal for hydroponics applications where constant measurements are required.
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Gro’Chek pH (HI981401N)
$139.95Designed for the greenhouse and hydroponics industry with a continuous readout.
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Guardian Monitor
$394.95Easy to use, just plug it in and place the probes in your nutrient reservoir.
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pHep 4 (HI98127)
$126.95Includes a dual-level, digital LCD and automatic temperature compensation.
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Portable (HI9813-6N)
$274.95Large dials located on the front panel makes calibration quick and simple.
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Replacement Probe
$72.95Sensors don’t last forever! Replace them every 12 months for accurate test results.