It’s a pricey piece of kit, but you won’t find better for coin hunting. Superfast re-tune speed on a budget machine is almost unheard of, but Fisher’s cheaper model is rapid on the return. Another great option as one of the best rated metal detectors is the Fisher F22 with regard to value for money.
The type of hunting you plan on doing makes a major difference in what machine you buy. An experienced operator can find gold where many others have not or have missed many bits. They can be a great tool and a mate of mine has used a discriminating VLF type detector on heaps to find silver and copper specimens, you do need the right detector for the job you are doing with it and to know how to use that type and model detector well.
Take off the coil cover and give it a really good clean. That’s a much bigger problem because salt water will corrode the delicate components. Put the whole detector somewhere warm and dry and see if that is enough to dry out the components. Turn down the sensitivity if its stuck on high, check for nearby power lines, radio stations or another detectorist. Move away accordingly. They range from 3 kHz to 70 kHz with gold detectors in the 13-50 kHz range.
It’s got pretty much everything you need for successful detecting such as a large coil, adjustable frequency, and easy-to-switch search modes for ‘coins’ or ‘gold’. The ACE 400 has all the ACE 350 features including five discrimination modes to help search for the metal you actually want, electronic pinpointing so you dig only once, sensitivity adjustment with ‘frequency adjust’ that toggles through small Metaldetectorshub frequency changes to eliminate interference, and high-res iron discrimination. I use one (Minelab GPX4000, a pulse induction type detector) for nugget hunting and also when I’m digging a gold bearing reef I’ll detect the quartz with a small coil and pick out the specimens for trimming. The Eriez MetAlarm Model VC Metal Detector offers an all-in-one unit including search coil and metal-free section.
Don’t worry if you can’t afford a high-end Minelab right away; get an intro model and go find some stuff. Most new hobbyists tend to spend $150-$300 on their first detector. Anything below that isn’t really considered a detector – it’s considered a toy. What makes one detector better than another (like cars) is the additional features and enhancements. All metal detectors detect metal – just like all cars drive down the road.
With so many activities to be done, people some people would prefer to use only one metal detector. Due to budget limitations, some people can only manage to buy one metal detector. For those who want to be fully immersed in this hobby, then they should look for a metal detector that can handle the rough terrain and the handling.
Every squeak and beep is a signal telling you something metal lies beneath the soil or sand, but maybe there’s something specific you want to find. Each time you hear the beep it could be ‘the big one’. Cold fingers, slippery sun lotion, water action, and hot sweaty sports can lead to objects working loose or falling from pockets.
The modes work by turning off segments from the Target ID scale. There are five to choose from – Jewelry, custom, relics, coins, and no discrimination. 8 kHz means you’ll pick up pretty much everything if you listen closely, but uping the kHz finds objects with greater conductivity such as gold.