Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca
You can visit the Tesoro web page at....http://www.tesoro.com/metal-detector-products.html You can check out the field tests there. I haven't used this Tesoro, about the only one, but can tell you Tesoro makes fine detectors.