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The Fisher Impulse AQ Ltd is a new pulse induction (PI) metal detector that saw limited release beginning in June 2020. Production is to be limited to 99 units, with about 30 made by December 2020. The Fisher Impulse AQ is the first of a planned 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 Impulse AQ has been released first as a limited production model (less than 100 units will be manufactured), 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 Fisher Impulse AQ Limited is being offered for a short time to enthusiasts who understand and accept these limitations, at a very attractive price. Development will continue on a future release with a deeper waterproof rating and longer battery life in a more robust physical package, but at a higher price. New Fisher Impulse AQ Ltd 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. Fisher Impulse AQ Ltd metal detector Threads on this websites First Texas Forum are tracking the latest developments. Information will be added here periodically. Fisher Impulse AQ Limited Specifications Latest pulse induction technology Tested waterproof to 1 meter / 3 feet for up to four hours Ergonomic balanced design Detachable NiMH battery Standard battery run time 3 - 3.5 hours depending on mode (All metal has shortest battery life) Time to charge fully depleted battery 5 hours Battery may be swapped out with an optional fully charged battery for more run time 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 battery approximately 4.2 lbs Weight of detector without battery approximately 3.2 lbs Length 43" - 48" adjustable Warranty 2 years parts & labor non-transferable Limited Edition Price $1499 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 Color Flyer Fisher Impulse AQ Ltd User Guide Fisher Impulse AQ Essential Information Fisher Impulse AQ Ltd controls