There is excitement in the air concerning Pulse Induction (PI) metal detectors. It is said that a revolutionary model is about to be released by several manufacturers. The main characteristic of PI detectors is their ability to ignore both conductive and non-conductive mineralization in the environment at the same time, while maintaining high sensitivity to all metal targets. Another positive feature is their detection range is not affected by the medium between the coil and the target. Performance for the most part is not hindered by water, sand, silt, solid coral and generally speaking, the air. Some PI’s I have used do not go as deep to locate a target in the air as they do for submerged or buried targets.

I dug a 1957 Roosevelt dime at eighteen inches with my Fisher Impulse. It took more than forty minutes to retrieve that coin in the shallow water at Sunset Beach in Tarpon Springs, FL and that is a primary reason I do not use PI’s for coin shooting. Another reason is the extreme sensitivity to all metal targets will mean digging about thirty junk items for every good target in most coin shooting environments. You will literally plow a field before you finish covering the ground. In doing a comparative test last year, I dug almost 300 junk items and retrieved only nine coins and three jewelry keepsakes. A third negative aspect of most PI’s is the difficulty of pinpointing targets.

Pinpointing with a PI is a learned art. Most conventional detectors either the center of the coil or a pinpointing button or switch makes for an easy retrieval of finds. One PI I own the target centering point is to the left side of center and is very difficult to zero in on small targets. My primary uses for PI’s are gold prospecting, Civil War relic hunting and bottle digging ventures. They go very deep! I have dug shotgun casings at nearly two feet, nails at fifteen inches and as mentioned above a dime at eighteen inches. Here is my positive thought for using a PI for relic hunting. The P in Pulse Induction stands “Power”! I feel empowered when hunting fields and woods for relics and an occasional coin is a great bonus. However, as a coin-shooter the P stands for punishment in most of my environments. I cannot use one in hunting a burned-out property lot, or on a sports bleacher area or on a ball diamond to name a few areas where a conventional detector with a small three to five inch coil will produce far greater rewards and not destroy the back or shoulders.

I have listed some of the PI’s out there now and they are worth the time to go online and compare their specs and prices. Every serious treasure finder needs to have one as a part of their detecting arsenal. You might want to wait though and see what is coming soon before spending some serious cash. I cannot wait! Bring on those new PI’s.

C Scope 7 UMD (UK) – Underwater Pulse detector

C Scope 4PI (UK) - All purpose land detector

Minelab GPX – 4000 (Australia) - Gold Nugget/Prospecting detector

Minelab GP 3500 – (Australia) – Gold Nugget/Prospecting detector

Minelab SD 2100 – (Australia) – Gold Nugget/Prospecting detector

Minelab SD 2200v2 (Australia) – Gold Nugget/Prospecting detector

Aurora Aqua Pulse (Canada) – Wrist mount underwater detector

White’s Surfmaster PI Pro – Underwater/Surf/Beach detector

Tesoro Sand Shark - Underwater Detector

Garrett Infinium LS - Water/Land detector

Garrett Sea Hunter Mark II – Underwater detector

Fisher Impulse - Land/Sea detector

DetectorPro Headhunter Pulse - Underwater detector

Larry Smith is an avid coin collector and metal detector enthusiast. He’s been collecting coins for over 45 years. Larry is giving away his ebook, “Coin Collecting With The Home Town Advantage” FREE for a limited time. You can get your copy and start building (or expanding) your own collection right now.

Get the ebook (and TONS of other great FREE content) by visiting his blog now:

http://MetalDetectorForCoinCollecting.com/free-report

Metal Detecting The Relic Hunter’s Journal Chapter 9: Civil War Field

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