Kurt that is interesting. You have always shared your information on this site!! Thanks!! Did you ever try to measure activity on conibear, foottrap, or snare? Just wondering if they give off any reading.
In my publication I showed pictures and illustrations showing Conbears foothold and snares as well as cage traps . All of the devices show a Field intensity projection. How the device is made materials used, how it is placed and whether or not it is on land or underwater makes a terrific difference. The lower the projection of the magnetic field the easier it is to catch the animal.
Some animals have a greater response to the projected field than Others. Some can see the projected field and some can only sense the field.