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Meters & Controllers

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Bluelab Conductivity Pen Meter | Measures Conductivity and Temperature
In stock
$91.19
Save 11%
2-in-1 EC + Temp Sensor for Reservoir
In stock
$89.75 $100.28 -11%
Save 6%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In stock
$89.14 $95.00 -6%
Bluelab Combo Meter pH Replacement Probe | pH probe
In stock
$79.90
Save 12%
pH Sensor for Reservoir
In stock
$77.87 $88.20 -12%
Save 2%
Aeromixer Aerobuddy Timer + Power Controller
In stock
$77.22 $79.00 -2%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$74.44 $99.95 -26%
Save 16%
GroStar GS4-E replacement pH/EC combo electrode
In stock
$67.19 $79.99 -16%
Blumat Digital Moisture Meter | 12in
Out of stock
$67.09 $85.99 -22%
Save 15%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$63.75 $74.95 -15%
Save 16%
HM Digital Replacement pH Sensor Probe for HM-500
In stock
$50.39 $59.99 -16%
Save 16%
Gardena Smart Flow Water Meter
In stock
$49.55 $58.99 -16%
Save 16%
GroStar GS3-E replacement EC electrode
In stock
$45.35 $53.99 -16%
Save 16%
GroStar GS1-E replacement pH electrode
In stock
$42.83 $50.99 -16%
Save 16%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.99 $49.99 -16%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$38.21 $49.95 -24%
Save 19%
HM Digital PH-80 pH/Temperature Meter
In stock
$37.69 $46.50 -19%
Save 13%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In stock
$37.42 $42.95 -13%
Save 15%
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
In stock
$33.99 $39.95 -15%
Hanna Electrode Storage Solution
In stock
$30.39
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