Portable Fingertip Pulse Oximeter for Hiking and Skiing

Two readings, one button, no setup

• Two numbers that matter on the trail

  The colour OLED puts SpO2 and pulse side by side on one screen. You read both at a glance at a switchback or on a chairlift, without scrolling through settings.

• Clip on, press once, done

  Open the clip, slide your fingertip in, and press the single button. There is no app to open and no profile to set up. The screen wakes and starts reading.

• A signal bar that tells you when to trust it

  The bar-graph signal indicator fills when the sensor has a steady read. Wait for the bars to fill and the numbers to settle, then take the reading. The body is light enough to ride in a chest pocket all day.

Clip, rest, press, read in under a minute

1. 1
   Warm and rest your hand

   Warm cold or gloved fingers first, then sit or stand still with your hand relaxed at heart level.

2. 2
   Clip the device on

   Open the clip with light pressure and seat your fingertip in it, with the sensor flat against the nail.

3. 3
   Press the button

   One press powers the display. There are no menus, so the first reading is as simple as the fifth.

4. 4
   Wait for the signal bar

   Hold still for about 30 seconds. When the bars fill and the SpO2 and pulse numbers stop moving, the read is steady.