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Meters & Controllers

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Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In stock
$39.62 $99.95 -60%
Save 17%
HM Digital PH-80 pH/Temperature Meter
In stock
$38.53 $46.50 -17%
Save 12%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In stock
$37.71 $42.95 -12%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.66 $49.95 -25%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$29.03
Save 2%
Bluelab Meter Carrying Case | Meter Not Included
In stock
$28.63 $29.08 -2%
Save 2%
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$27.80 $28.24 -2%
Save 9%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$27.30 $30.00 -9%
Save 17%
Hydrofarm Electronic Water Timer
In stock
$26.07 $31.49 -17%
Save 2%
Hanna General-Purpose Cleaning Solution | 230ml
In stock
$24.31 $24.69 -2%
Save 17%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In stock
$24.00 $28.99 -17%
Save 2%
Hanna 4.01 pH Buffer Solution | 500ml
In stock
$23.56 $23.93 -2%
Save 2%
Hanna 7.01 pH Buffer Solution | 500ml
In stock
$23.56 $23.93 -2%
Save 2%
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In stock
$23.56 $23.93 -2%
HM Digital TDS-3 Handheld TDS meter
In stock
$22.76 $33.99 -33%
Hanna Electrode Storage Solution
In stock
$22.21
Save 2%
Bluelab pH Probe KCl Storage Solution | 250ml
In stock
$21.90 $22.24 -2%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$21.74 $29.99 -28%
Save 1%
Bluelab Probe Care Kit | for Bluelab pH Probes
In stock
$21.06 $21.38 -1%
Save 17%
GroStar pH Probe Maintanence Kit
In stock
$19.86 $23.99 -17%
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