Specification Test Object Linearity Repeatability(CV) Stability Accuracy K+ ± 0.3mmol/L ≤ 1.0 % ± 0.2mmol/L/h ± 0.3mmol/L Na+ ± 3.0mmol/L ≤ 1.0 % ± 2.0mmol/L/h ± 3.0mmol/L Cl- ± 3.0mmol/L ≤ 1.0 % ± 2.0mmol/L/h ± 3.0mmol/L Ca++ ± 0.2mmol/L ≤ 2.0 % ± 0.2mmol/L/h ± 0.2mmol/L pH -- ≤ 1.0 % ± 0.02/h Standard Ca++ and Total Ca++(calculating value) Sample Serum, Whole Blood, Plasma, Diluted Urine Sample Volume 90UL Testing Time ≤ 50s Temperature 10° C-30° C, humidity: ≤ 85% Power Supply Voltage AC160V-245V 50± 1Hz

