Its main advantages are: resistance to interference, sufficient sensitivity and excellent accuracy in the pinpoint mode. He asked me if I could help establish a value on it so he could sell it so I figured I'd ask the Garrett Forum folks for advice.

High-resolution iron discrimination - Use touchpads to set iron discrimination in one of 40 levels for the precise ability to separate good targets from trash. Without getting to technical, ground balancing enables the metal detector to cancel out the negative effects caused by ground mineralization.For separating desirable targets from iron junk in cluttered areas, this model features 40 points of iron discrimination. Increased Durability Tougher design to stand the rigours of the field Increased Sensitivity More power for faster target location Faster Retuning Capability Fast on/off cycles allows user to quickly: Shrink detection field to precisely pinpoint large targets Tune out mineralized ground, wet beach sand, etc. This all-terrain detector offers new and exclusive Garrett technology that makes it ideal for hunting coins, relics, jewellery, and even gold nuggets.

The Garret AT Pro creates a new International standard for All Terrain Metal Detectors around the world. I have a buddy that purchased an AT Pro 5 years ago and he used it about 20 hours total and it's been in his closet for the rest of the time. The Fisher F22 also comes with a simple display on which the numbers are very easy to read, as well as a depth meter. I counted once how many friends had started with my ACE 250 and then bought their own device… In just a few years, this ACE 250 gave the world 24 newbies! We appreciate the depth of the interface, considering it allows you to eliminate metals, change sensitivity settings, and even perform automatic ground balancing to optimize performance.

Many Garrett detectors use an LCD screen with button interface as opposed to knobs that many other manufacturers use.