urine test instrument China Yercon made 120times/h,test 10para,CE ISO13485:2003 Glucose,protein,Blood,nitrite,SG,PH, ... .b.Universal pH 1-14. it can test all kind of pH value for all kind colorless liquid.2.Ketone strips used ... good quality control system,good after-sale service,good design for OEM,good supply chain........ PLS contact us without hesitation!Learn ...