Fisher Impulse AQ Metal Detector

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Professional Pulse Induction Beach Detector Fisher Impulse AQ Metal Detector The Fisher Impulse AQ is a professional-grade Pulse Induction metal detector purpose-built for serious beach, surf, wet sand, black sand, and shallow-water hunting. Designed for experienced detectorists searching for deep gold jewelry and relics in difficult saltwater environments, the Impulse AQ combines adjustable pulse delay, multitone audio, iron and ground rejection controls, and specialized beach-focused operating modes to perform where many standard VLF detectors struggle. PI Pulse Induction Technology 12.5" Mono Searchcoil 7-11.5 μs Adjustable Pulse Delay 3 ft Waterproof to 1 m 4.2 lb Balanced Weight What’s Included Fisher Impulse AQ Detector Professional Pulse Induction detector built for advanced saltwater, surf, and beach hunting. 12.5" Mono Searchcoil Waterproof mono searchcoil designed for deep detection and broad beach coverage. Rechargeable NiMH Battery 2200 mAh rechargeable battery system with approximately 3.5 hours of runtime. Headphone Audio Output 1/4" headphone jack with adjustable headphone volume control. Built for Saltwater and Black Sand The Impulse AQ is designed for challenging beach environments where saltwater, wet sand, and black sand can make many detectors unstable. Its Pulse Induction platform helps ignore mineralization that commonly affects VLF detectors, making it a strong choice for serious beach hunters. Adjustable Pulse Delay The adjustable pulse delay range of 7–11.5 μs lets experienced users tune the detector for small gold sensitivity or larger, deeper targets. This level of control is especially useful when hunting beaches with changing sand, mineralization, and target conditions. Four Operating Modes The Impulse AQ gives you four specialized operating modes: All Metal, Tone, Mute, and Volcanic Sand. These modes help you adapt to different beach conditions, from maximum depth searching to difficult volcanic or mineralized sand. Iron and Ground Rejection Controls Adjustable iron rejection and manual ground balance give advanced users more control over how the detector responds to unwanted iron and mineralized ground. These settings help fine-tune the detector for serious wet sand and shallow-water target recovery. Waterproof to 3 ft / 1 m The Impulse AQ is waterproof to 3 ft / 1 m for shallow-water detecting, surf edges, wet sand, and harsh beach conditions. It is built for beach recovery work where salt, spray, and shallow water are part of the hunt. Professional Analog Control Layout Instead of a digital screen, the Impulse AQ uses an analog control layout with knobs for expert-level adjustments. Controls such as ATS, Delay, Reject, Sensitivity, Volume, and ground balance allow experienced users to tune the detector to the site. Why Choose the Fisher Impulse AQ? Beach-Focused PI Technology Pulse Induction performance is ideal for wet salt sand, black sand, surf, and shallow-water environments. Gold Jewelry Sensitivity Tuned for low-conductivity targets such as gold jewelry while still detecting high-conductive metals. 12.5" Mono Searchcoil The large mono coil provides broad coverage and strong depth on wet and dry sand. Multitone Audio Multitone audio feedback helps separate target responses by sound while hunting. Volcanic Sand Mode Specialized mode helps the detector perform in difficult volcanic sand and highly mineralized beach conditions. Manual Ground Balance Adjustable ground balance gives experienced users more control in changing beach conditions. Waterproof Housing Fully waterproof to 3 ft / 1 m for surf, shallow-water, wet sand, and harsh beach use. Expert-Level Tuning ATS, Delay, Reject, Sensitivity, and Volume controls allow detailed adjustment for site conditions. Rechargeable Battery Rechargeable NiMH 2200 mAh battery provides approximately 3.5 hours of detecting time. Fisher Impulse AQ Specifications Purpose Beach hunting, shallow-water treasure hunting, gold jewelry detection, wet sand searching Manufacturer First Texas Products, LLC Brand Fisher Research Labs Country of Origin USA Warranty 2 Years Technology Pulse Induction / PI Pulse Frequency - All Metal 4.02–4.17 kHz Pulse Frequency - Tone / Mute 3.04–3.12 kHz Pulse Frequency - Volcanic Sand 1.54–1.56 kHz Pulse Delay Adjustable 7–11.5 μs Operating Modes All Metal, Tone, Mute, Volcanic Sand Ground Balance Manual / adjustable Discrimination Yes, iron reject Target ID No Numeric ID No Fe Rejection Yes, adjustable Fe Readout No Fe-Tone Audio No Audio Multitone audio feedback, Low / High Volume Adjustable with headphones Sensitivity Adjustable via knob Depth Indicator No Pinpoint No Memory No Backlight No Display Analog controls Waterproof Waterproof to 1 m / 3 ft IP Rating Not rated Stock Searchcoil 12.5" mono searchcoil Headphone Jack Yes, 1/4" Weight 4.2 lbs / 1.9 kg Battery Type NiMH 2200 mAh rechargeable battery Battery Life Approximately 3.5 hours Show more