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: 1005005438484995
$14.53
Shipping from: China
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