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Meters & Controllers

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HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In stock
$36.86 $42.95 -14%
Gardena Smart Flow Water Meter
In stock
$36.40 $58.99 -38%
HM Digital PH-80 pH/Temperature Meter
In stock
$36.30 $46.50 -22%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$35.48 $49.95 -29%
Save 18%
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
In stock
$32.73 $39.95 -18%
Save 11%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$28.38 $31.99 -11%
Save 19%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$26.77 $32.99 -19%
Bluelab Meter Carrying Case | Meter Not Included
In stock
$26.75
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$25.91
Hydrofarm Electronic Water Timer
In stock
$24.56 $31.49 -22%
Hanna General-Purpose Cleaning Solution | 230ml
Out of stock
$24.12
Hanna 4.01 pH Buffer Solution | 500ml
Out of stock
$23.38
Hanna 7.01 pH Buffer Solution | 500ml
In stock
$23.38
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In stock
$22.61 $28.99 -22%
Hanna Electrode Storage Solution
Out of stock
$22.21
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In stock
$22.21
HM Digital TDS-3 Handheld TDS meter
In stock
$21.44 $33.99 -37%
Bluelab pH Probe KCl Storage Solution | 250ml
In stock
$20.75
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$20.48 $29.99 -32%
Save 18%
Dilution Solutions EC Calibration Solution | 20pc Box
In stock
$20.45 $24.95 -18%
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