Baseline Fingertip Pulse Oximeter, Deluxe:

The Baseline® fingertip pulse oximeter measures and displays real-time pulse and SpO2 level. This compact and lightweight pulse oximeter has large, easy-to-read display that automatically shuts off when not in use. Deluxe model features a plethsmograph (waveform) and a 6-way multidirectional OLED HD display. Unit has wrist lanyard. 2 AAA batteries included.