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pH Meters

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HM Digital Replacement pH Sensor Probe for HM-500
In stock
$49.67 $59.99 -17%
Save 17%
GroStar GS1-E replacement pH electrode
In stock
$42.21 $50.99 -17%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$39.62 $99.95 -60%
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HM Digital PH-80 pH/Temperature Meter
In stock
$38.53 $46.50 -17%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.66 $49.95 -25%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$29.03
Save 9%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$27.30 $30.00 -9%
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Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In stock
$23.56 $23.93 -2%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$21.74 $29.99 -28%
Save 17%
GroStar pH Probe Maintanence Kit
In stock
$19.86 $23.99 -17%
Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0
In stock
$15.41 $21.29 -28%
SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH
In stock
$10.67 $13.49 -21%
Hydrofarm Active Air 3-Way Meter
Out of stock
$10.10 $14.99 -33%
Active Air 2-Way pH & Moisture Meter | 1ct
In stock
$9.12 $13.99 -35%
Active Air 2-Way Moisture/pH Meter
In stock
$8.17 $11.84 -31%
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