10 in 1 water quality testing pen PH/TDS/EC/salinity/SG/ORP/hydrogen-rich/resistivity/temperature/nutrient solution

10 in 1 water quality testing pen PH/TDS/EC/salinity/SG/ORP/hydrogen-rich/resistivity/temperature/nutrient solution
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sku: 1005009543253863
$45.62
Shipping from: China

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