Has anyone used it? Is it accurate and, are the numbers helpful over using just a traditional bubble.
http://www.sears.com/shc/s/p_10153_12605_00948293000P
http://www.sears.com/shc/s/p_10153_12605_00948293000P
Has anyone used it? Is it accurate and, are the numbers helpful over using just a traditional bubble.
http://www.sears.com/shc/s/p_10153_12605_00948293000P
