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Meters & Controllers

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2-in-1 EC + Temp Sensor for Reservoir
In Stock: 8
$95.19 $100.28 -5%
Bluelab Combo Meter pH Replacement Probe | pH probe
In Stock: 426
$94.14 $126.85 -26%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In Stock: 95
$90.99 $95.00 -4%
pH Sensor for Reservoir
In Stock: 2
$82.59 $88.20 -6%
Aeromixer Aerobuddy Timer + Power Controller
In Stock: 15
$81.90
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Out of stock
$75.25 $359.00 -79%
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$72.44 $74.95 -3%
GroStar GS4-E replacement pH/EC combo electrode
In Stock: 87
$67.19 $79.99 -16%
Blumat Digital Moisture Meter | 12in
Out of stock
$67.09 $85.99 -22%
Gardena Smart Flow Water Meter
Out of stock
$49.55 $58.99 -16%
GroStar GS3-E replacement EC electrode
In Stock: 100
$45.35 $53.99 -16%
GroStar GS1-E replacement pH electrode
In Stock: 101
$42.83 $50.99 -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
$40.64 $49.95 -19%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In Stock: 80
$39.69 $42.95 -8%
HM Digital PH-80 pH/Temperature Meter
In Stock: 93
$39.09 $46.50 -16%
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
Out of stock
$37.49 $39.95 -6%
Hanna Electrode Storage Solution
In Stock: 7
$34.99
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In Stock: 77
$34.78 $45.51 -24%
HM Digital Replacement pH Sensor Probe for HM-500
Out of stock
$32.34 $59.99 -46%
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