[amazon.com](https://npw.clicorice.ca/links/9XzdRR) has the Metene Fingertip Pulse Oximeter for $12.74 – $4 off (clipped coupon coupon) = **$8.74** with free shipping on $25+ or with Prime.

* Measures pulse rate & blood oxygen level, has 8-second auto shutoff, large LED and backlight display.