This Pulse Oximeter is $39 with shipping at Costco.com. It's $49 on Amazon.
http://www.costco.com/Browse/Produc..._Price|1||P_SignDesc1&lang=en-US&Sp=C&topnav=
Although the company looks like a flake ...
http://www.costco.com/Browse/Produc..._Price|1||P_SignDesc1&lang=en-US&Sp=C&topnav=
Although the company looks like a flake ...