The Ferret is about 1" in dia. and 3" long. It has 1/4x20 screw threads to connect to end of fish rod. It connects to smartphone via WiFi. I use mine to look inside walls when fishing wires ...saves a lot of time.


Merritt

Business Telephones & Equipment + Commercial Audio/Video Products
Commercial Communications . . . Turner, Maine
If it was built after 1980 don't expect it to work right.