Trueview presents pulse oximeter i31, Which offers the features of a conventional oximeter in user friendly, A compact and portable configuration. It accurately measures your blood oxygen saturation levels spo2, Heart heart rate measurement and perfusion index pi, Along with a spo2 waveform on an easy, To, Read led display. This gadget serves as very simple for application and delivers immediate results. The led display has four colours and comes with adjustable brightness. It also displays signal strength and the four display modes are convenient to overview the data. The oximeter also has a low voltage indicator and consumes very less power. It shuts off automatically when not in use which saves power. This device alerts you when one can discover an abnormality, Transforming it into an efficient choice. This product is exceptionally suited for medical hospital, Clinics, Ems and homecare related applications where fast measurements are required. Features 4 colors led display, Adjustable brightness displays spo2, Pr, Pi, Spo2 waveform pleth or line displays signal strength four convenient to, Display modes overview the data low voltage indicator, Minimal energy usage 2 aaa alkaline batteries automatic power, Off design light, Compact, Attractive design.