Testing items:GLU,BIL,SG,KET,BLD,PRO,URO,NIT,LEU,VC,PH. Testing theory:RGB tricolor testing theory. Repetition:CV≤l%. Stability:CV≤1%. Display:2.4"color LCD Working mode:One-Step Data storage:500 sample data which can be freely checked by test date and sample number. Power supply:DC 5V,built-in rechargeable lithium battery. Dimension:126mm)×73.5mmW)×30 mm(H). Weight:about 0.18Kg