The Triscanner provides all the
features and performance of the Stud Sensor Pro with the additional
capability of deeper scanning (up to 1-1/2" deep), constant
AC detection of unshielded wire and metal locating for
metallic plumbing and rebar. Use the Triscanner in deep-scan mode to
help detect floor joists through carpeting and carpet pad. It can
also be used to help detect rebar in cement/masonry up to 3" thick.
This is one of the best stud sensors you can buy!