Metal detector owners manuals. DISC contains digital pdfs that can be printed or stored long term until needed, or even copied over to your phone (android) while your out just in case you have any detector troubles the manual will always be on hand. Garrett 'Groundhog' metal detector, ADS (automatic detection system) AmericanA-1. Condition is 'Used'. I’m no expert on these, but appears to function as it should. Even found some “treasures” in our yard with it. Will be slightly disassembled for shipping. Garrett Ads Deepseeker Metal Detector Manual Product Owner's Manuals for Other Garrett® Detectors ADS Deepseeker™ and ADS Groundhog (58 KB) A2B and ADS-Goldhunter (59 KB) Metal Detector. I first purchased a Garrett Deepseeker, with all attachments including 14' coil, Garrett Electronics Ads VLF TR.