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Meters & Controllers

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Bluelab Calibration KCl storage solution | 18ml
Out of stock
$47.38
Bluelab Mix Calibration Solutions
Out of stock
$47.38
GroStar GS3-E replacement EC electrode
In Stock: 100
$45.02 $53.99 -17%
GroStar GS1-E replacement pH electrode
In Stock: 78
$42.52 $50.99 -17%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.69 $49.99 -17%
Hm Digital Replacement Ph Sensor For Hm-500/ Hm-200
In Stock: 16
$41.44 $54.95 -25%
GARDENA Water Smart Flow Meter | Measures in Gallons or Liters
In Stock: 78
$158.60 / $39.65 per unit
(minimum purchase of 4)
HM Digital PH-80 pH/Temperature Meter
In Stock: 84
$38.81 $46.50 -17%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$37.74 $49.95 -24%
Hm Digital Leakblock Sensor
In Stock: 38
$37.67 $49.95 -25%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In Stock: 16
$35.82 $42.95 -17%
Milwaukee Instruments pH600 Digital pH Pen
In Stock: 287
$35.55
Dilution Solutions HM Digital EC Tester | 6in x 1.7in x .7in
Out of stock
$34.81 $39.95 -13%
Hm Digital Replacement Ph Sensor For Ph-200/Com-360
In Stock: 16
$33.90 $44.95 -25%
Hm Digital Replacement Tds/Ec Sensor For Hm-200
In Stock: 23
$33.90 $44.95 -25%
Bluelab Guardian Power Supply International
Out of stock
$33.70
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In Stock: 86
$33.25 $35.00 -5%
HM Digital Replacement pH Sensor Probe for HM-500
Out of stock
$32.80 $59.99 -45%
HM Digital pH 80 Meter
In Stock: 299
$32.54 $46.76 -30%
Hanna Electrode Storage Solution
In Stock: 3
$31.74
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