Portable Digital Pen Type pH Meter/pH Tester Hangzhou Ruichang Import and Export Co., Ltd. Base Info Model NO.:T03Display:DigitalPortable:PortableAppliance:pH TesterTrademark:OEMTransport Package:200 PCS,CartonSpecification:152*29*15mmOrigin:ChinaHS Code:9031809090 Description Pre:TDS Meter Water Tester Pen Measurement Tool TDS Tester Next:High-Accuracy Portable Digital Pen Type pH Meter/pH Tester