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    • Fisher F11 Metal Detector with 11 Inch DD Coil (Open Box)

    Fisher F11 Metal Detector with 11 Inch DD Coil (Open Box)

    Vendor:Fisher Type:Metal Detectors
    SKU: OBWS_F11-11DD
    Sale Price $184.50 Regular Price $205.00

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    4.9 from 3,100+ verified reviews · 4.8 on Google
    • Authorized U.S. dealer Genuine Fisher, full manufacturer warranty.
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    Best for

    Highlighted icons show the targets, ground and experience level this detector is built for.

    The Fisher F11 is a 7.69 kHz VLF metal detector for coins, jewelry and relics, here as an open box unit with the 11 inch DD elliptical waterproof coil in place of the stock 7 inch coil. It has three search modes (Jewelry, Coin and Artifact), target ID shown as icons and segments, 4-tone audio and preset ground balance, and runs 20 to 25 hours on one 9V battery.

    Open Box: Metal detectors with damaged or opened packaging, offered at a reduced price. Full manufacturer’s warranty included. Questions about a specific unit? Call us.

    Configuration
    Detector Fisher F11, 7.69 kHz VLF, made in the USA by First Texas
    Coil 11 inch DD elliptical searchcoil, waterproof
    Power 1 x 9V battery, 20 to 25 hours
    Fisher F11 metal detector with 11 inch DD elliptical waterproof coil

    What is in the box with the Fisher F11 with 11 inch DD coil (open box)

    Fisher's standard contents for the F11 with 11 inch DD coil

    • Fisher F11 control box and adjustable S-rod shaft with padded grip and arm rest
    • 11 inch DD elliptical waterproof searchcoil
    • 9V battery
    • Owner’s manual

    Who the Fisher F11 with 11 inch DD coil is for

    We like the F11 for its simplicity: useful target information without overwhelming a beginner. We recommend it to beginners, families and occasional detectorists who want to try metal detecting in yards, parks and relatively mild ground before investing in more advanced equipment; it is primarily a recreational coin and jewelry detector. The 11 inch DD coil is the better pick for open parks, sports fields, dry sand and plowed ground, where coverage per sweep matters more than working between targets.

    Fisher F11 search modes and target ID

    The three search modes are the main control on the F11. We suggest new hunters begin in a general-purpose mode such as Coin rather than leaning on aggressive discrimination. Jewelry mode suits swim areas and tot lots where rings turn up, and Artifact mode suits older home sites and fields where relics are the goal. Notch discrimination works by target category, so you can drop a category you keep digging as trash, such as pull tabs, instead of dialing a number.

    The F11 has no numeric target ID. The icons, the segment display and the 4-tone audio (bass, low, medium and high) do the work: iron gives a low tone and the Fe icon, and higher tones point to higher-conductivity targets such as coins. Treat that reading as an estimate, not a positive identification. Sensitivity runs from 1 to 6 and volume from 0 to 6. Start sensitivity at a stable setting rather than at maximum, especially near power lines, fences or another detector.

    Pinpoint, depth and battery

    The F11 starts up at sensitivity 5 and volume 4. A 6-segment coin depth bar shows how deep a coin-sized target sits, and the push-and-hold pinpoint narrows down the target and gives a depth readout before you dig. One 9V alkaline battery runs the F11 for 20 to 25 hours.

    Where the Fisher F11 works best and its limits

    Parks, yards, sports fields, old house sites and dry beach sand suit the F11. The coil is waterproof, but the control housing and the coil cable plug must stay dry, and Fisher's manual points to its optional rain cover (COV-F11) for wet weather. Ground balance is preset, so heavily mineralized soil and wet salt sand sit outside what the F11 is set up for; the Fisher F44 adds manual and automatic ground balance. We would not recommend the F11 for someone who regularly searches that kind of ground or wants extensive adjustment options. Within Fisher's lineup, we would look at the Fisher F75 for serious relic and coin hunting, and a Fisher Gold Bug model for natural-gold prospecting. For saltwater beaches, see our beach metal detectors.

    A common F11 mistake

    Assuming every high tone or coin icon is a valuable coin. Aluminum and certain iron objects can produce misleading responses.

    Our recommendation on the Fisher F11

    Choose the F11 for a straightforward introduction to recreational metal detecting.

    Fisher F11 specifications

    Specification Fisher F11
    Technology VLF, 7.69 kHz
    Search modes Jewelry, Coin, Artifact
    Discrimination Notch by target category
    Target ID Visual icons and segments, Fe icon and low tone for iron
    Audio 4 tones: bass, low, medium, high
    Sensitivity 1 to 6
    Volume 0 to 6
    Ground balance Preset at the factory
    Pinpoint Push and hold, with depth readout
    Depth indicator 6-segment coin depth bar
    Searchcoil 11 inch DD elliptical, waterproof
    Control box Not waterproof; optional Fisher rain cover
    Headphone jack 1/4 inch
    Battery 1 x 9V alkaline, 20 to 25 hours
    Weight 2.3 lb (1.04 kg) with the stock 7 inch coil
    Warranty 2 years

    Fisher covers the F11 with a 2-year warranty. The same configuration new is the Fisher F11 with 11 inch DD coil.

    Serious Detecting is a family-owned, authorized Fisher dealer with a showroom in Ypsilanti, Michigan, and our staff help by phone or email.

    More open box units are in our open box metal detectors collection.

    Product Specifications
    Specification Name Specification Value
    Apps None
    Arm rest Adjustable
    Arm rest strap No
    Assembled length max in 51
    Assembled length min in 41
    Audio tones Yes
    Backlit display No
    Battery life hr 20 to 25 Hours
    Battery quantity 1
    Battery type 9-Volt
    Bluetooth compatible No
    Control box mount Standard
    Depth indication true
    Discrimination Adjustable
    Exclusive features Static PinPoint and Notch
    Frequencies 7.69 kHz
    Ground balance Fixed
    Interchangeable headphones Yes
    Interchangeable search coil Yes
    Metal detector category Treasure & Relic Detectors
    Metal detector model Fisher F11
    Metal detector type Metal Detectors
    Metal detector usage Suitable for Kids and Beginner / Intermediate
    Number of frequencies 1
    Operating principle Very Low Frequency (VLF)
    Pinpoint Yes
    Programmable target id No
    Search coil shape Elliptical
    Search coil size 11"
    Search coil type Double-D (DD)
    Search flashlight No
    Search modes 3
    Skill level Beginner / Intermediate
    Target id Yes
    Target id segments 9
    Technology VLF Single Frequency
    Threshold No
    Vibration mode No
    Volume control Yes
    Water resistance Waterproof Coil
    Wireless Wired
    Wireless audio None
    Service & Support

    Warranty & Product Assurance

    At Serious Detecting, we stand behind the quality of every product we offer. Warranty coverage is provided directly by the manufacturer and may vary depending on the item. We’re here to help you understand your coverage and assist with the warranty process when needed. If you ever have questions or need support navigating a warranty claim, our team is happy to guide you.

    Technical Support & Expert Guidance

    Whether you’re setting up new gear, optimizing performance, or troubleshooting an issue in the field, our knowledgeable support team is here to help. We use this equipment ourselves, so we can offer real-world tips and step-by-step assistance to get you detecting with confidence. Message us anytime and we’ll do our best to get you pointed in the right direction fast.

    Manuals, Resources & Downloads

    Access user manuals, setup guides, safety tips, and technical documentation in our online support center. These resources help you understand your equipment, learn recommended settings, and get the most out of every hunt.

    Replacement Parts & Accessories

    Keep your equipment running strong with genuine parts and accessories. We carry coils, batteries, chargers, protective gear, digging tools, and more — fully compatible with your detector and backed by manufacturer standards. Not sure what fits your model? Just ask — we’re here to help.

    Training & Tutorials

    New to detecting or upgrading to advanced equipment? Our resource library includes helpful guides, maintenance tips, how-to videos, and expert advice from experienced detectorists. From ground balancing and coil choices to target ID basics and field technique, you’ll find the knowledge you need to level up your success.

    Customer Questions & Expert Answers

    Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup — or ask your own to make sure this gear fits your next adventure.

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    Customer Reviews & Field Feedback

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