Lightweight, compact finger pulse oximeter with optional external sensors, suitable for spot checks and attended monitoring on adults, paediatrics and neonatals/infants. Accurately measures and displays SpO2 and pulse rate with pulse bar and waveform. Plethysmographic waveform allows finger placement optimisation. Creative signal processing technology offers artefact removal and motion tolerance. No-button design with colour OLED display of SpO2, PR, PI, pulse bar and waveform. Clear multicolour screen with auto-rotate 4-direction display. Automatic power on/off when finger is inserted/removed. Easy to clean: can be easily wiped down between uses.