pH & Testing

Dial in your grow with precision pH meters, TDS/EC testers, soil moisture meters, and nutrient test kits. Accurate readings mean healthier plants and better yields.

Quick Calibration Solution for GroLine pH and EC Meters (25 x 20 mL sachets)
Hanna Instruments
Quick Calibration Solution for GroLine pH and EC Meters (25 x 20 mL sachets)
$44.99
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Soil Test Direct Soil Conductivity Tester
Hanna Instruments
Soil Test Direct Soil Conductivity Tester
$149.99
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EC/TDS Probe for Low Range Mini Controllers
Hanna Instruments
EC/TDS Probe for Low Range Mini Controllers
$74.99
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Quick Calibration Solution for GroLine pH and EC Meters (500 ml)
Hanna Instruments
Quick Calibration Solution for GroLine pH and EC Meters (500 ml)
$24.99
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HM Digital TDS-3 Handheld TDS meter
HM Digital Meters
HM Digital TDS-3 Handheld TDS meter
$37
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Milwaukee MW804 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Tester with Replaceable Probe
Monster Gardens
Milwaukee MW804 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Tester with Replaceable Probe
$219.65
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pH/EC/TDS Multiparameter Probe
Hanna Instruments
pH/EC/TDS Multiparameter Probe
$149.99
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Quick Calibration Solution for GroLine pH and EC Meters (230 ml)
Hanna Instruments
Quick Calibration Solution for GroLine pH and EC Meters (230 ml)
$19.99
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pH/EC/TDS Multiparameter Probe for use with HI9814
Hanna Instruments
pH/EC/TDS Multiparameter Probe for use with HI9814
$184.99
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GroLine pH/EC/TDS Multiparameter Probe
Hanna Instruments
GroLine pH/EC/TDS Multiparameter Probe
$209.99
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HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
HM Digital Meters
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
From $7.50
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Luster Leaf Rapitest Soil Test Kit
Luster Leaf
Luster Leaf Rapitest Soil Test Kit
$17.99
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Multifunction Moisture Meter Replacement Pins (Set of 2)
Sper Scientific Direct
Multifunction Moisture Meter Replacement Pins (Set of 2)
$19.95
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Scanning Moisture Meter
Sper Scientific Direct
Scanning Moisture Meter
$211.60
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Pocket Conductivity / TDS Meter
Sper Scientific Direct
Pocket Conductivity / TDS Meter
$33.35 $27.99
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Pocket Moisture Meter Replacement Pins (Set of 2)
Sper Scientific Direct
Pocket Moisture Meter Replacement Pins (Set of 2)
$11.50
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Multifunction Moisture Meter with Psychrometer
Sper Scientific Direct
Multifunction Moisture Meter with Psychrometer
$160
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Milwaukee MW806 MAX 4-in-1 pH/EC/TDS/Temp. Combo Meter with ATC
Monster Gardens
Milwaukee MW806 MAX 4-in-1 pH/EC/TDS/Temp. Combo Meter with ATC
$461.15
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Milwaukee MW805 MAX 4-in-1 pH/EC/TDS/Temp Combo Meter with ATC
Monster Gardens
Milwaukee MW805 MAX 4-in-1 pH/EC/TDS/Temp Combo Meter with ATC
$461.15
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Milwaukee MW803 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Tester – Low Range
Monster Gardens
Milwaukee MW803 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Tester – Low Range
$219.65
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RapiTest Digital Moisture Meter
Grow Organic
RapiTest Digital Moisture Meter
$25.99
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RapiTest Soil Test Kit pH/N-P-K
Grow Organic
RapiTest Soil Test Kit pH/N-P-K
$23.99
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Soil Moisture Meter
Zenport
Soil Moisture Meter
$14.36
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HM Digital Replacement EC/TDS Sensor for HM-500
Global Garden
HM Digital Replacement EC/TDS Sensor for HM-500
$49.95
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