Meters & Controllers

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

Product Code:

AI61113

$15.72 $18.99 -17%

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Save 28%

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

Product Code:

LUS1845

$15.41 $21.29 -28%

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Save 1%

Bluelab Probe Care Kit | for Bluelab Conductivity Probes

Product Code:

BLBCAREKITCON

$15.17 $15.40 -1%

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Bluelab Conductivity Standard Solution | 120ml - 2.77EC

Product Code:

BLBSTSOL120BL

$13.06 $13.26 -2%

Save 9%

Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml

Product Code:

MIMA9004

$12.65 $13.90 -9%

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Milwaukee Instruments pH 7.01 Solution, 230 ml

Product Code:

MIMA9007

$12.65 $13.90 -9%

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Save 27%

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

Product Code:

SPPSP80003

$12.42 $16.99 -27%

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

Product Code:

AI71117

$12.41 $14.99 -17%

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Save 21%

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

Product Code:

SPPSP80002

$10.67 $13.49 -21%

Save 33%

Hydrofarm Active Air 3-Way Meter

Product Code:

HYFMGMLP1

$10.10 $14.99 -33%

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Save 60%

Dilution Solutions EC Calibration Solution | 20pc Box

Product Code:

DILCP1000

$9.89 $24.95 -60%

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

Product Code:

BLBEC277250BL

$9.56 $9.71 -2%

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

Product Code:

BLBPH4250BL

$9.56 $9.71 -2%

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

Product Code:

BLBPH7250BL

$9.56 $9.71 -2%

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

Product Code:

HYFMGMP1

$9.12 $13.99 -35%

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Save 31%

Active Air 3-Way Meter

Product Code:

MGMLP1

$9.09 $13.09 -31%

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Save 8%

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

Product Code:

HMDC1000

$8.74 $9.49 -8%

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Save 56%

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

$8.72 $19.99 -56%

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Save 31%

Active Air 2-Way Moisture/pH Meter

Product Code:

MGMP1

$8.17 $11.84 -31%

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Save 16%

Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM

Product Code:

DILC1000

$7.51 $8.95 -16%

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