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
I had bought a discovery once at a yard sale because the price was right, and believe me, you do get what you pay for. The ace150 and 250 are great entry level detectors that will find you paydirt without the frustration.