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Meters & Controllers

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Milwaukee Instruments pH 7.01 Solution, 230 ml
In stock
$12.84 $13.90 -8%
Bluelab Conductivity Standard Solution | 120ml - 2.77EC
In stock
$12.69
SUNPACK Tri-Meter Moisture, Light & pH | Measures Moisture, Light & pH
In stock
$12.60 $16.99 -26%
Save 16%
GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
In stock
$12.59 $14.99 -16%
SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH
In stock
$10.82 $13.49 -20%
Hydrofarm Active Air 3-Way Meter
In stock
$10.25 $14.99 -32%
Bluelab Conductivity Standard Solution | 250ml - 2.77 EC - Designed for Bluelab Products
In stock
$9.27
Bluelab pH 4.0 Calibration Solution | 250ml - Designed for Bluelab Products
In stock
$9.27
Bluelab pH 7.0 Calibration Solutions | 250ml - Designed for Bluelab Products
In stock
$9.27
Active Air 2-Way pH & Moisture Meter | 1ct
In stock
$9.25 $13.99 -34%
Active Air 3-Way Meter
In stock
$9.23 $13.09 -29%
Save 6%
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
In stock
$8.88 $9.49 -6%
Active Air 2-Way Moisture/pH Meter
In stock
$8.29 $11.84 -30%
Save 15%
Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM
In stock
$7.63 $8.95 -15%
Save 16%
HM Digital PH-STOR pH Electrode Storage Solution
In stock
$7.13 $8.49 -16%
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