Fisher F22 Weatherproof Metal Detector with 9-Inch Coil

Fisher F22 Weatherproof Metal Detector – An Approachable All-Purpose Detector for New Hobbyists

The Fisher F22 is a single-frequency metal detector aimed at beginners and casual hobbyists who want to get outside and start finding things without spending weeks learning their equipment.

If you are new to metal detecting, or buying for a family member who wants to try the hobby, this is the kind of machine that gets out of your way and lets you focus on the ground.

What You Are Getting

The F22 runs on a 7.69 kHz operating frequency, which sits in a general-purpose range suited for coins, jewelry, and shallow relics. It is not a specialized machine for gold prospecting or deep relic hunting. It is built to cover a wide range of common targets in everyday detecting environments: parks, beaches, fields, and backyards.

The search coil measures 9 inches, which is a practical size for most open ground. It covers enough area to sweep efficiently without becoming awkward to control in tighter spots.

Detection depth is listed at up to 9 inches. That is a reasonable figure for coin-sized targets in cooperative soil. In heavily mineralized ground or dense clay, real-world depth will be shallower, as it is with any single-frequency detector at this level.

Weatherproof, Not Waterproof

The F22 carries an IP54 rating. In plain terms, that means it can handle rain, splashing, and dusty or muddy conditions without failing. You can hunt through a downpour or wade into shallow water at the edge of a stream.

What it does not mean is that you can submerge the control housing. The search coil is listed as submersible, but the main body of the detector is not. Do not take this into the surf or underwater. If beach detecting in the wet sand zone is your primary goal, you will want a detector with a fully waterproof housing.

Reading the Detector

The F22 uses a 0 to 99 numeric Target ID system. Lower numbers typically indicate iron and foil; higher numbers point toward coins and jewelry. This gives you a quick read on what might be buried before you decide whether to dig.

It also sorts targets into visual Target Categories on the display, so even if the number does not mean much to you yet, the category label helps you interpret the signal.

A 4-Tone Audio ID System adds another layer: different targets produce different tones, so with a little practice you can start identifying likely targets by ear without looking at the screen every time.

The display is either OLED or LCD depending on the unit produced. Both show the same information; the difference is mostly in how crisp the screen looks in bright sunlight.

Controls Worth Knowing

Four functions give you meaningful control over how the machine behaves:

• Discrimination lets you filter out targets you do not want, such as iron nails or bottle caps, so the detector ignores them rather than signaling on everything in the ground.
• Notch works alongside discrimination, letting you block a specific range of target IDs while still accepting others above and below it. Useful when a particular type of junk is cluttering your signals.
• Sensitivity adjusts how deep and how aggressively the detector reaches. Higher sensitivity finds deeper targets but also picks up more interference from mineralized soil or nearby electrical sources. Dialing it back smooths out the signals when the ground is noisy.
• Pinpoint temporarily switches the detector into a non-discriminating mode that helps you locate exactly where in the ground the target sits, so you dig a smaller, cleaner hole.

These are not complicated controls. They are the same core functions found on much more expensive machines, presented here in a straightforward layout that does not require a manual to figure out.

Weight and Comfort

The F22 weighs approximately 2 to 3 pounds depending on batteries. That is light enough to swing for several hours without your arm giving out, which matters more than most beginners expect. A padded grip and arm cup help distribute the weight across your forearm rather than putting it all on your wrist.

Battery Life

Rated battery life is 25 hours. For a day out detecting, that is more than enough. You are unlikely to find yourself mid-hunt with a dead machine.

Who This Is Not For

If you are already an experienced detectorist looking for more nuanced ground balance control, multiple frequency options, or wireless audio, the F22 will feel limited. It is a single-frequency machine with manual controls and no advanced ground mineralization management. Experienced hunters working highly mineralized soil, salt beaches, or deep relic sites will outgrow it quickly.

It is also not the right choice if you specifically want to detect in the water. The IP54 rating protects against rain and splashing, but the control box is not built for submersion.

The Short Version

The Fisher F22 is a solid first detector for someone who wants to learn the hobby without being overwhelmed by settings or weighed down by a heavy machine. It gives you real, useful feedback on what is in the ground, handles bad weather without complaint, and teaches you the fundamentals of discrimination and target ID that carry over to more advanced machines later.

If you are ready to start digging and want something you can pick up and use on day one, the F22 is a sensible place to begin.