Zacurate -Pulse Oximeter
Pro series 500DL, Finger tip pulse oximeter, Blood oxygen saturation monitor with silicone cover
Accurate pulse rate and oxygen in seconds. Just insert in your finger into chamber.
LED display
Never used. Bought new Amazon $25
Pick up in front of Dunkin's Donut 238 Grove St Braintree
Cash only please as I don't have Venmo etc
If you are reading this, it is available