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ExStik 多參數pH/電導/TDS/鹽度計測試筆 EC500
Pen type pH/EC/TDS/Salinity/Temp Meter
ExStik 微電腦pH測試筆 PH100
Pen type pH Meter
ExStik 餘氯測試筆 CL200
Pen type Chlorine Comparator
ExStik 微電腦電導度/TDS/鹽度測試筆 EC400
Pen type EC/TDS/Salinity /Temp Meter
ExStik ORP測試筆 RE300
Pen type ORP Meter
ExStik 微電腦溶氧測試筆 DO600
Pen type DO Meter
