Digital Pen TDS Meter for Water Tester Pen TDS Meter Hangzhou Ruichang Import and Export Co., Ltd. Base Info Model NO.:T13Display:DigitalAppliance:Water TesterPortable:PortableType:TDS MeterTrademark:OEMTransport Package:200 PCS,CartonSpecification:15.5*3.1*2.3Origin:ChinaHS Code:9026809000 Description Pre:Consistometer Hthp, Double Cells Next:Digital Handheld TDS Tester TDS Meter TDS-3 Water Tester