Are they costly ? several days ago i have bought a pulse oximeter at a low price but with CE certified and FDA approvel! all of us maybe in tight corner on how to find a cheaper one! i will tell you now! usually we always think we can buy it from ebay, it is cheapest than others,but in fact it cost much more than buy from a manufacture. can they supply cheaper than ebay ?

Alex Christian (alex.christian@gmail.com)