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
$159.95

The COM-300 is an advanced waterproof combo meter with superior accuracy. The meter measures four parameters: pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS) and temperature. Features include 2 different conductivity conversion factors to convert EC to TDS using the 0.5 (NaCl) or 0.7 (442TM), as well as selectable modes for measurements in the µS, mS and ppm scales. The meter incorporates automatic temperature compensation (ATC) to accommodate for discrepancies in temperature that would naturally occur, and also features digital calibration for easy and precise calibration that will yield better results.             

$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.             

$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.
$11.00
For use with all BlueLab and other conductivity instruments using the 2.77 mS/cm/1385/1940 standard.
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25 Item(s)