国内的亲戚打电话跟我说美国有种不需要抽血的测试仪，要我帮她买几个，可是她也不知道名字也没有照片，搞得我一头雾水。哪位高人指点一下，谢谢！

pharmacies sometimes have blood glucose meter for free when you buy 100 test strips.

just remember meters and test strips must match. and, strips are expensive.