Open Box Fisher Impulse AQ Limited Waterproof Metal Detector

Name: Open Box Fisher Impulse AQ Limited Waterproof Metal Detector
Brand: Fisher
SKU: OBWS_IMPULSE-AQ-NMH
Price: 1619.10 USD
Availability: OutOfStock

Vendor:Fisher Type:Metal Detectors

SKU: OBWS_IMPULSE-AQ-NMH

$1,619.10 ~~$1,999.00~~

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Out of Stock

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Fully Waterproofto 3 ft Pulse Induction

Wired

Best for

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

Coin & Relic — shop all
Gold — not suited to this detector
Beach & Water — shop all
Kids — not suited to this detector
Beginner / Intermediate — not suited to this detector
Advanced / Expert — shop all

Open Box - The Impulse AQ Limited features the latest advancements in Pulse Induction technology and lightweight design. The Impulse AQ Limited excels in fresh and saltwater and volcanic sand. It is designed for beach-hunting, wading, and shallow-water treasure hunting. The Impulse’s pulse induction design sets a new standard for uncovering treasure on saltwater beaches. The Impulse delivers the deepest detection of any detector. The Impulse operates stable and consistently in the most challenging marine environments where all other detectors fail. The Impulse has variable Iron Reject which identifies many iron targets, especially nails. The Impulse-AQ delivers maximum sensitivity with lightning-fast recovery speed to find long-lost treasure buried in iron-infested beaches. Find DEEP GOLD that no other detector can reach.

Features:

Pulse Induction Technology
High sensitivity to gold targets
Variable reactivity
Excellent stability
Handles a variety of beach environments
Iron rejection
Frequency offset for EMI suppression
Pulse Delay, adjustable: 7μs – 15μs
Zero Target Separation – ZTS®
Highly Reactive System HRS®
Low fatigue, ergonomic design
2 Year Limited Manufacturers Warranty

Adjustable ATS to Manage:

Target separation
Depth detection
Iron rejection
Ground noise
Surf conditions
EMI

Pulse Frequency

All Metal Mode: 4.02kHz - 4.17kHz
Tones & Mutes Mode: 3.04kHz - 3.12kHz
Volcanic Sand Mode: 1.54kHz - 1.56kHz

Product Specifications

Specification Name	Specification Value
Color pattern	Black, Gray, White
Detector sensitivity	Adjustable
Frequency type	Selectable
Power source	Battery-powered
Audio output	Headphones
Audio tone	Multitone
Frequencies	4.02kHz - 4.17kHz, 3.04kHz-3.12kHz, 1.54kHz-1.56kHz
Metal detector category	Beach & Underwater Detectors and Treasure & Relic Detectors
Metal detector model	Fisher Impulse-AQ
Metal detector type	Metal Detectors
Metal detector usage	Advanced / Expert
Operating principle	Pulse Induction (PI)
Search coil	12.5" mono
Warranty	2-year Limited
Waterproof depth rating	3 Feet
Water resistance	Waterproof
Weight	9
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.

Demo / Open Box

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.

What does open box mean on this Fisher Impulse AQ Limited?

Open box means the box on this Fisher Impulse AQ Limited was opened, so it cannot be sold as new. The detector itself is current stock, not a repair and not a return from long use, and it is checked before it ships. That is the whole reason it sits 10 percent under the new price. Cosmetically it may show light handling marks that a sealed unit would not. The sealed version is on our Fisher Impulse AQ Limited listing.

Answered by Dan P. · September 2026

Does the open box Fisher Impulse AQ Limited come with the full warranty?

The open box Fisher Impulse AQ Limited carries the same warranty as a new one: Fisher's 2-year limited manufacturer coverage, running from your purchase. Opening a box does not shorten it. We are an authorized dealer, so the serial is on file with First Texas Products and service goes through the factory. The rest of the range is in our Fisher metal detectors collection.

Answered by Richard T. · September 2026

What is included with the open box Fisher Impulse AQ Limited?

The open box Fisher Impulse AQ Limited includes what the new one includes: the detector with its 12.5 in waterproof mono coil, and the rechargeable 2200 mAh NiMH battery good for about 3.5 hours. Headphones are not part of the package. The Impulse AQ needs a wired waterproof set, and Fisher's own is the waterproof headphones for the Impulse AQ.

Answered by John W. · September 2026

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Customer Reviews & Field Feedback

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