My detector detects large deep nails and rusty items, even when set to reject pulltabs. Is this normal for my detector type?
Unfortunately, most motion detectors can be fooled by large rusty items, especially if those items are circular. Large rusty iron washers are tough for a motion detector to reject, as well as steel bottle caps. Sweeping the detector faster will help a lot on the steel bottle caps and will help some on the large iron washers. Fortunately, large iron pieces seem to be much “broader” sounding targets in the All Metal mode than good targets which are not magnetic.
Unfortunately, most motion detectors can be fooled by large rusty items, especially if those items are circular. Large rusty iron washers are tough for a motion detector to reject, as well as steel bottle caps. Sweeping the detector faster will help a lot on the steel bottle caps and will help some on the large iron washers. Fortunately, large iron pieces seem to be much “broader” sounding targets in the All Metal mode than good targets which are not magnetic.
