A handheld electrolyte analyzer that delivers lab-quality, diagnostic results in minutes. Sample:whole blood sample volome:100 Display:4.3 IPS touch screen Battery:5000mAh Fast results:4 minutes Built-in thermal printer Test Cartridge: BE5 cartridge:K+,Na+,Cl-, Ca2+,PH BG8 cartridge:K+,Na+,Cl-, Ca+,PH,Pco2,PO2,HCT