|
|
|
|
|
by typeliftr
2577 days ago
|
|
AFAIK, metal detectors (the standing ones) use a simple coil and a receiver on the other side to detect changes in the EM field. The hand-help ones like these ones use either radio waves or microwaves to scan for metal, so non-ionizing radiation. In both cases metal detectors should be safe. |
|