Hi to all ! this is the copper chamber open only at the front so as not to be affected by the sun. inside there is an infrared photonsensor cell with high sensitivity .it is so sensitive that I may have a signal, from a beer bottle cap a little buried from 4 meters as well as a difference of metals that could give a good signal to a VLF. the iron remained stable but added more metals to the detection in the same field .I like it.
|