Low Oxygen causes?

[DevinJones]

Google "Wellue Handheld Pulse Oximeter SP-20," and you'll see the Wellue site. Google for the best Wellue promo code or use JONATH10 to save about $20.

You can use different professional finger sensors too. I use the Nellcor OxiMax MAXN SpO2 Sensor.

Google "Nellcor OxiMax MAXN SpO2 Sensors" "Medical Supply Surplus" to buy one for $13. I just reuse it every night and add a little medical tape too.

I love the pulse oximeter and sensor.