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pH Meters

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20
Bluelab Combo Meter pH Replacement Probe | pH probe
In stock
$79.90
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$72.84 $99.95 -27%
Save 18%
GroStar GS4-E replacement pH/EC combo electrode
In stock
$65.75 $79.99 -18%
Save 18%
HM Digital Replacement pH Sensor Probe for HM-500
In stock
$49.31 $59.99 -18%
Save 18%
GroStar GS1-E replacement pH electrode
In stock
$41.91 $50.99 -18%
Save 18%
HM Digital PH-80 pH/Temperature Meter
In stock
$38.25 $46.50 -18%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.39 $49.95 -25%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$29.94
Save 6%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$28.16 $30.00 -6%
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In stock
$24.30
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$21.58 $29.99 -28%
Save 18%
GroStar pH Probe Maintanence Kit
In stock
$19.71 $23.99 -18%
Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0
In stock
$15.30 $21.29 -28%
SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH
In stock
$10.59 $13.49 -21%
Hydrofarm Active Air 3-Way Meter
In stock
$10.03 $14.99 -33%
Active Air 2-Way pH & Moisture Meter | 1ct
In stock
$9.06 $13.99 -35%
Active Air 2-Way Moisture/pH Meter
In stock
$8.11 $11.84 -32%
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