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Meters & Controllers

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Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
In stock
$32.10 $39.95 -20%
Save 13%
Milwaukee Instruments pH600 Digital pH Pen
In stock
$27.83 $31.99 -13%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$26.25 $32.99 -20%
Save 2%
Bluelab Meter Carrying Case | Meter Not Included
In stock
$26.22 $26.75 -2%
Save 2%
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$25.40 $25.91 -2%
Hydrofarm Electronic Water Timer
In stock
$24.08 $31.49 -24%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In stock
$22.17 $28.99 -24%
HM Digital TDS-3 Handheld TDS meter
In stock
$21.02 $33.99 -38%
Save 2%
Bluelab pH Probe KCl Storage Solution | 250ml
In stock
$20.34 $20.75 -2%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$20.08 $29.99 -33%
Dilution Solutions PH Calibration Solution | 20pcs
In stock
$20.06 $24.95 -20%
Save 2%
Bluelab Probe Care Kit | for Bluelab pH Probes
In stock
$19.66 $20.05 -2%
GroStar pH Probe Maintanence Kit
In stock
$18.35 $23.99 -24%
Save 2%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In stock
$16.26 $16.59 -2%
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Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$16.25 $16.57 -2%
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Bluelab pH 7.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$16.25 $16.57 -2%
P3 International Save a Drop Water Meter
In stock
$15.26 $19.95 -24%
GroStar pH calibration kit (pH 4/7, 8 oz. each)
In stock
$14.52 $18.99 -24%
Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0
In stock
$14.24 $21.29 -33%
Save 2%
Bluelab Probe Care Kit | for Bluelab Conductivity Probes
In stock
$13.93 $14.21 -2%
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