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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25 Item(s)

Hydroponic Testing

$47.95
HM Digital EC/TDS Hydrotester
$62.95
HM Digital pH-80 pH Hydrotester
$55.00
Hanna DiST4 EC Meter
$112.50
$112.50
BlueLab pH Pen
$94.00
Bluelab PPM Pen
$254.95

Custom ordered for you- Please contact us for details

$308.00

Custom ordered for you- Please contact us for details

$7.54
$7.54
$10.99

Maintaining the proper pH of your fertilizer solution is critical to a crop's ability to utilize nutrients.

$0.39
Price is for each
$11.95
Storing the pH pens probe in Storage Solution extends the life of the probe and prevents untimely failure of the meter during measuring operations.
$7.54
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.
$7.54
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.
$33.95

Milwaukee's most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration, and accuracy of ±0.2 pH. Battery Life: 700 hours. Calibration solution sold separately.             

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25 Item(s)