Meters & Controllers

Bluelab Conductivity Standard Solution | 120ml - 2.77EC

Product Code:

BLBSTSOL120BL

$16.56 $21.37 -23%

GroStar pH calibration kit (pH 4/7, 8 oz. each)

Product Code:

AI61113

$15.95 $18.99 -16%

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Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0

Product Code:

LUS1845

$15.86 $21.29 -26%

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Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml

Product Code:

MIMA9004

$13.50 $13.90 -3%

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Milwaukee Instruments pH 7.01 Solution, 230 ml

Product Code:

MIMA9007

$13.50 $13.90 -3%

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SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH

Product Code:

SPPSP80002

$12.82 $15.79 -19%

SUNPACK Tri-Meter Moisture, Light & pH | Measures Moisture, Light & pH

Product Code:

SPPSP80003

$12.78 $16.99 -25%

GroStar EC Calibration Kit (2.77 EC, 8 oz. each)

Product Code:

AI71117

$12.59 $14.99 -16%

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Bluelab Conductivity Standard Solution | 250ml - 2.77 EC - Designed for Bluelab Products

Product Code:

BLBEC277250BL

$12.47 $15.63 -20%

Bluelab pH 4.0 Calibration Solution | 250ml - Designed for Bluelab Products

Product Code:

BLBPH4250BL

$12.01 $15.63 -23%

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Bluelab pH 7.0 Calibration Solutions | 250ml - Designed for Bluelab Products

Product Code:

BLBPH7250BL

$12.01 $15.63 -23%

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Hydrofarm Active Air 3-Way Meter

Product Code:

HYFMGMLP1

$11.02 $14.99 -26%

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Active Air 2-Way pH & Moisture Meter | 1ct

Product Code:

HYFMGMP1

$9.95 $13.99 -29%

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Active Air 3-Way Meter

Product Code:

MGMLP1

$9.36 $13.09 -28%

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Hort2O Digital Hygro-Thermometer | 9.8ft Temperature Sensor - Digital Display - Measures Temperatures 32°F to 122°F - Measures Humidity 20% to 98%

Product Code:

HTDHT388

$8.97 $19.99 -55%

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Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM

Product Code:

DILC1000

$8.67 $8.95 -3%

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Dilution Solutions EC Calibration Solution | 20pc Box

Product Code:

DILCP1000

$8.49 $24.95 -66%

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Active Air 2-Way Moisture/pH Meter

Product Code:

MGMP1

$8.02 $11.84 -32%

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HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)

Product Code:

HMDC1000

$7.97 $9.49 -16%

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Dilution Solutions PH Storage Solution | 60cc

Product Code:

DILPHSTOR

$7.71 $7.95 -3%