The Surf BHID 300, the Surf PI Pro Dual Field are both good relic hunters but will not like hot rocks and high iron mineralisation. The BHID is fine for relic hunting. I do not know of a Surf ID Pro and I cannot find it on Whites web site. Is this an old machine.
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 do not know of a Surf ID Pro and I cannot find it on Whites web site. Is this an old machine.
The Surfmaster PI Pro is as has been said a Pulse Induction machine and does not have Ground balance but it does have a fast Auto Retune which helps a bit on dry land that is mineralised but you will not get the depth of a good GB machine in these conditions. and it will respond to every bit of iron that comes within range right down to the smallest bits of wire and rusty boot tacks etc.
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
All I can recall are:
Surfmaster. Surfmaster II, Surfmaster PI Deep Diver, Surfmaster PI, Surfmaster PI Plus, Surfmaster PI Pro, Surfmaster Dual Field, Surfmaster Amphibian(VLF), BDHI (VLF), BDHI 300 (VLF)