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Digital Meters

HM Digital COM-80 Pen Style TDS/EC/Temp Meter

$42.95
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Digital Meters

HM DIGITAL HM-100 CONTINUOUS PH/EC/TDS/TEMP MONITOR

$299.99
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Digital Meters

HM Digital Hydromaster HM-200 Portable PH/TDS/EC/Temp Meter

$274.95
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Digital Meters

HM Digital Hydromaster HM-500 Continuous PH/TDS/EC/Temp

$359.95
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Digital Meters

HM Digital PH-80 Pen Style PH/Temp Meter

$46.50
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Digital Meters

HM Digital Pro Series COM-100 Pen Style TDS/EC/Temp Meter

$74.95
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Digital Meters

HM Digital Pro Series COM-300 Pen Style PH/TDS/Temp Meter

$159.95
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Digital Meters

HM Digital Pro Series PH-200 Pen Style PH/Temp Meter

$99.95
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Digital Meters

HM Digital TDS-3 Pen Style TDS/EC/Temp Meter

$19.95