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Meters & Controllers

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Bluelab Connect Stick 2 | for Bluelab Connect Devices
In stock
$147.11
Bluelab Commercial Truncheon Nutrient Meter | Measures EC, CF, & PPM
In stock
$132.57
Hanna GroLine Waterproof Hydroponic pH Tester
Out of stock
$129.99
Bluelab Leap pH Probe | For Bluelab Combo Meter - Bluelab Combo Meter Plus - and Bluelab Multimedia pH Meters
In stock
$124.02
Bluelab pH Pen Meter | Measures pH and Temperature
In stock
$106.91
Save 15%
GroStar GS1 pH Pen
In stock
$98.27 $115.99 -15%
Bluelab Truncheon Nutrient Meter V2 | 40cm L - 16 in. L
In stock
$95.80 $128.70 -26%
Save 16%
GroStar GS3 EC Pen
In stock
$95.75 $113.99 -16%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In stock
$95.56
Bluelab Conductivity Pen Meter | Measures Conductivity and Temperature
In stock
$89.80
Save 15%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$85.01 $99.95 -15%
Bluelab Combo Meter pH Replacement Probe | pH probe
In stock
$78.69
Save 4%
Aeromixer Aerobuddy Timer + Power Controller
In stock
$76.05 $79.00 -4%
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
In 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%
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%
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