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Meters & Testing

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BlueLab
2.77 EC Conductivity Standard Solution
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$12.95
Hanna
Gro-Line pH Digital Meter (waterproof)
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$85.95
Hanna
GroLine pH 4.01 Buffer Sachets (20 mL)
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$1.95
Hanna
GroLine pH 7.01 Buffer Sachets (20 mL)
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$1.95
Hanna
Hanna (1413) µS/cm Conductivity Standard (20ml)
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$1.95
HM Digital
HM Digital PH-80 pH/Temperature Meter
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$46.95
GROW1
Indoor & Outdoor Temperature And Humidity Hygrometer w/ Probe
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$18.95
Nute Tools
Nute Meter Replacement Electrode
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$19.95
Nute Tools
Nute Tools Calibration Solution 4.0 (250ml)
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$10.95
Apogee
PAR/ppfd Meter - Extended Range (340 to 1040nm)
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$575.00
Apogee
PAR/ppfd Meter Sensor Wand
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$59.95
Milwaukee Instruments
pH 4.01 Calibration Solution (230 ml)
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$10.95
General Hydroponics
pH Test Kit (1oz)
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$7.95
HM Digital
PPM/TDS Calibration Solution (3oz )
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$9.95
GroLine
Quick Calibration Solution for GroLine pH and EC Meters (1 x 20 mL sachets)
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$1.95
Luster Leaf
Rapitest Soil Test Kit
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$17.95
Soil Savvy
Soil Test Kit
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$34.95
General Hydroponics
Standard Reference Solution (1500 PPM)
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$8.95
Sure Test
Sure Test® Temperature and Relative Humidity Data-Logger
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$89.95
HM Digital
TDS Digital Meter
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$36.95
HM Digital
TDS Digital Meter
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$42.95
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Taylor Precision Products
Temperature/Humidity Gauge (12")
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$28.95 $19.95