there is a wide spread scam on ebay going on with the oxi meters . i have tried to order two different ones, both times once the items have all been sold the seller has been removed from ebay and i did not receive the product. it is still going on. there is a seller who has a 0 rating and is "selling" oximeter under 3 different listings but he does not have the product seller id is iveyvd666 (0 )