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Fisher Impulse AQ

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Steve Herschbach
  • Price: $2999 ? Freq: Pulse Weight: 4.2 lbs Waterproof?: Yes

The Fisher Impulse AQ is a new pulse induction (PI) metal detector with an expected released in 2021. The Fisher Impulse AQ is part of a series of new pulse induction detectors from Fisher Research. The AQ (AQua) is a waterproof model intended for beach and water hunting. Pulse induction technology offers extreme performance on highly mineralized beaches that inhibit the depths attainable with VLF metal detectors.

The AQ was released first in 2020 as a limited production model, the Impulse AQ Limited. This machine has a depth rating of three feet and a NiMH battery with running time of up to 3.5 hours. The battery is attached by an exposed cable that is the main cause for the 3 foot depth rating, and which must be handled with care. The Impulse AQ Limited ceased production in December 2020 after a run of about thirty units.

The 2021 production model of the Impulse AQ will feature various upgrades and improvements to the Limited version of the detector:

  1. Battery system replaced entirely with four drop in 18650 rechargeable Li-Ion batteries
  2. Depth rating to be increased
  3. Lower rod made longer to accommodate taller users
  4. Headphone connection being relocated to back of pod
  5. An 8” accessory coil is in the works

According to this post, the final Impulse AQ will be released by July 2021, and it will sell for between $2800 and $3500

fisher-impulse-aq-prototype.jpg
Prototype Fisher Impulse AQ pulse induction metal detector

The Fisher Impulse AQ offers excellent depth and superb sensitivity to gold jewelry - the machine is highly optimized for finding gold rings in particular. The most anticipated feature is discrimination better than that currently offered on any other pulse induction metal detector. The discrimination is focused more on high value gold rings than coins, and may actually exclude many coins if enabled. This is not considered a problem for many serious beach hunters as a lot of time is wasted recovering coins under difficult conditions when gold rings are actually the desired target. The compact waterproof design and relatively light weight is also attracting attention. Other Impulse models are expected to be aimed at gold prospectors and possibly even the relic/coin detecting market.

Threads on this websites First Texas Forum are tracking the latest developments. Information will be added here periodically.

Fisher Impulse AQ Specifications

  • Latest pulse induction technology
  • Tested waterproof to 3 meters / 10 feet
  • Ergonomic balanced design
  • 12.5” Mono Coil, weighs 400 grams or 14.1 ounces
  • 8” coil accessory coil will be available
  • Yoke type lower rod for extra coil stability in water
  • Knob controls for easy control location and use in low visibility conditions
  • Detector complete with batteries approximately 4.2 lbs
  • Length 43" - 48" adjustable
  • Warranty - to be determined
  • Controls:
  • Volume 1 - 9
  • Threshold 1 - 9
  • Sensitivity 1 - 9
  • Auto Tune Speed (ATS) 1 - 10
  • Reject (Iron Mask) 1 - 12
  • Pulse Delay / Frequency Adjust (Noise Cancel) 7 uS - 15 uS
  • Mode Switch:
  • Power On/Off
  • Battery Test / Frequency Adjust (EMI Noise Cancel)
  • All Metal (Monotone)
  • Tone (Two Tones, Ferrous and Non-Ferrous)
  • Mute (Block the Ferrous Tone)
  • Volcanic Sand
  • Battery Check LED

First Texas - Bounty Hunter, Fisher & Teknetics Metal Detector Forum

Fisher Impulse AQ Ltd User Guide (for a preview of the final AQ features)

Fisher Impulse AQ Final Version Thread

fisher-impulse-aq-control-panel-2020.jpg
Fisher Impulse AQ controls

 

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