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Meters & Controllers

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64
Hanna General-Purpose Cleaning Solution | 230ml
In stock
$25.26 $25.64 -1%
Hanna 4.01 pH Buffer Solution | 500ml
In stock
$24.49 $24.85 -1%
Hanna 7.01 pH Buffer Solution | 500ml
In stock
$24.49 $24.85 -1%
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In stock
$24.49 $24.85 -1%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In stock
$24.00 $28.99 -17%
Bluelab pH Probe KCl Storage Solution | 250ml
In stock
$22.76 $23.10 -1%
HM Digital TDS-3 Handheld TDS meter
In stock
$22.76 $33.99 -33%
Bluelab Meter Carrying Case | Meter Not Included
In stock
$22.29 $29.08 -23%
Bluelab Probe Care Kit | for Bluelab pH Probes
In stock
$21.88 $22.21 -1%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$21.74 $29.99 -28%
Dilution Solutions PH Calibration Solution | 20pcs
In stock
$21.24 $24.95 -15%
GroStar pH Probe Maintanence Kit
In stock
$19.86 $23.99 -17%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In stock
$18.25 $18.52 -1%
Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$18.25 $18.52 -1%
Bluelab pH 7.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$18.25 $18.52 -1%
P3 International Save a Drop Water Meter
In stock
$16.52 $19.95 -17%
Bluelab Probe Care Kit | for Bluelab Conductivity Probes
In stock
$15.76 $16.00 -2%
GroStar pH calibration kit (pH 4/7, 8 oz. each)
In stock
$15.72 $18.99 -17%
Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0
In stock
$15.41 $21.29 -28%
Bluelab Conductivity Standard Solution | 120ml - 2.77EC
In stock
$13.57 $13.77 -1%
Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml
In stock
$13.14 $13.90 -5%
Milwaukee Instruments pH 7.01 Solution, 230 ml
In stock
$13.14 $13.90 -5%
SUNPACK 2-Function Plant Sensor Meter | 2-Function - Measures Soil Moisture & pH
Out of stock
$12.46 $15.79 -21%
SUNPACK Tri-Meter Moisture, Light & pH | Measures Moisture, Light & pH
In stock
$12.42 $16.99 -27%
GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
In stock
$12.41 $14.99 -17%
Hydrofarm Active Air 3-Way Meter
In stock
$10.10 $14.99 -33%
Bluelab Conductivity Standard Solution | 250ml - 2.77 EC - Designed for Bluelab Products
In stock
$9.94 $10.08 -1%
Bluelab pH 4.0 Calibration Solution | 250ml - Designed for Bluelab Products
In stock
$9.94 $10.08 -1%
Bluelab pH 7.0 Calibration Solutions | 250ml - Designed for Bluelab Products
In stock
$9.94 $10.08 -1%
Active Air 2-Way pH & Moisture Meter | 1ct
In stock
$9.12 $13.99 -35%
Active Air 3-Way Meter
In stock
$9.09 $13.09 -31%
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
In stock
$9.08 $9.49 -4%
Hort2O Digital Hygro-Thermometer | 9.8ft Temperature Sensor - Digital Display - Measures Temperatures 32°F to 122°F - Measures Humidity 20% to 98%
Out of stock
$8.72 $19.99 -56%
Dilution Solutions EC Calibration Solution | 20pc Box
In stock
$8.25 $24.95 -67%
Active Air 2-Way Moisture/pH Meter
In stock
$8.17 $11.84 -31%
Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM
In stock
$7.63 $8.95 -15%
HM Digital PH-STOR pH Electrode Storage Solution
In stock
$7.02 $8.49 -17%
Plastair Wrox Color Change Moisture Indicator | 3pc
Out of stock
$6.82 $7.99 -15%
Dilution Solutions PH Storage Solution | 60cc
Out of stock
$6.78 $7.95 -15%
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