The Fisher Impulse AQ Limited is a professional-grade metal detector purpose-built for advanced beach, surf, and shallow water hunting. Designed for experienced users seeking deep gold and relics in challenging saltwater or volcanic sand conditions, this machine sets itself apart with specialized Pulse Induction technology and exceptional target separation capabilities.
Engineered to perform where most detectors struggle, the Impulse AQ excels in wet salt environments and black sand. Its adjustable pulse delay (7–11.5 μs) and multitone audio deliver remarkable sensitivity to low-conductivity targets like small gold. Advanced features include iron and ground rejection controls, multiple operating modes (All Metal, Tone, Mute, and Volcanic Sand), and a waterproof 12.5" mono searchcoil for deep detection. The manual settings for ATS, Delay, and Reject offer expert-level tuning for maximizing performance based on your specific hunting ground.
Built to withstand harsh beach environments, the Impulse AQ boasts a durable construction, sealed electronics, and a waterproof housing rated to 3 ft. The adjustable shaft and balanced 4.2 lb frame ensure comfort during long sessions, while its rechargeable NiMH battery delivers up to 3.5 hours of operation. With intuitive controls and a factory-tested waterproof system, it’s ready for serious treasure recovery straight out of the box.
Specifications
- Manufacturer: First Texas Products, LLC
- Brand Name: 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
- Operating Modes: 4 (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: Yes, Multitone Audio Feedback (Low | High)
- Volume: Yes, Adjustable with headphones
- Sensitivity: Yes, Adjusted via knob
- Depth Indicator: No
- Pinpoint: No
- Memory: No
- Backlight: No
- Display: Analog
- Weatherproof: Waterproof to 1m (3ft)
- IP Rating: Not Rated
- Stock Searchcoil(s): 12"
- Headphone Jack: Yes (1/4")
- Weight: 4.2 lbs (1.9 kg)
- Battery Type: NiMH 2200 mAh Rechargeable Battery
- Battery Life: 3.5 Hours