Come and see our amazing products. Digital pulse oximeter can be used to measure pulse rate, blood oxygen saturation levels accurately. Easy to Read: Support SPO2, pulse, and bar chart, you can view your result very clear with LCD display. Easy to Use: Accurate and reliable, one button operation, just clip it on to your finger and turn it on at the press of a button.Accomodates wide range of finger sizes - finger chamber with smart spring system. Powered by 2 AAA batteries (Not included). Your logo is welcome. The price includes the shipping cost to ca, QTY over 3000pcs by ocean. 100% guarantee for quality. Rush service is available. We are GLAD to get SINGLE PIECE ORDER. Pls confirm with us about the packing info, stock status and exact production time before placing your orders.