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Testing and adjusting your nutrient solution's pH and nutrient levels is key to promoting nutrient uptake, which in turn leads to a happy, productive garden.
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24 Item(s)

Hydroponic Testing

$38.36
HM Digital EC/TDS Hydrotester
$50.36
HM Digital pH-80 pH Hydrotester
$44.00
Hanna DiST4 EC Meter
$90.00
BlueLab pH Pen
$75.20
Bluelab PPM Pen
$203.96

Custom ordered for you- Please contact us for details

$246.40

Custom ordered for you- Please contact us for details

$22.00
Replacement probe for the regular Hanna Digital pH Checker pen.
$15.96
$15.96
$6.03
$6.03
$6.03
A pH measurement meter is only as good as the most recent calibration. General Hydroponics Standard Reference Solution are pH meter calibration solutions that are available in pH 4.01 (pink) and 7.01 (green) and assure the accuracy of your pH pen or meter.
$6.03
A pH measurement meter is only as good as the most recent calibration. General Hydroponics Standard Reference Solution are pH meter calibration solutions that are available in pH 4.01 (pink) and 7.01 (green) and assure the accuracy of your pH pen or meter.
$9.56
Storing the pH pens probe in Storage Solution extends the life of the probe and prevents untimely failure of the meter during measuring operations.
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24 Item(s)