subject: Handheld Metal Detectors And Its Various Kinds [print this page] Like any other material invented several years ago, metal detectors were initially made with crude materials which were obviously not as advanced as the ones that we see today. However, both ancient and modern metal detection devices have the same principles as far as operation is concerned - and that is, to use electromagnetic signals to detect metal objects or traces of metals inside solid objects.
Due to the increasing threats to safety, several establishments both private and public, have metal detection devices installed at strategic location inside their buildings - usually at the entrance. The are two types of metal detectors - one is where you have to walk through two pillars of some sort, while the other one is a hand held device that most security personnel carry with them and scan your body with it while you stand.
If your establishment is not that big, you might as well go for a handheld metal detector in order to maximize the space that you have. To help you with that, here are the types of hand held metal detection devices that might help you decide which one you should buy.
Commercial or Industrial - metal detection devices used for commercial purposes are the ones mostly used in correctional establishments and don't have all of the special features that other hand held metal detection devices have. Security posts at places like the airport and hospitals usually use this type of detector. Sensitivity is the primary use of hand held metal detection devices.
Professional - a professional metal detector is tremendously powerful that it can find treasures that are up to 100 feet deep. This kind of detectors is often used by many archeologists and treasure hunters - standard metal detection devices can't penetrate deeply compared to a professional metal detection device.
All Purpose - there are also metal detection devices that serve a rather general purpose. This kind of device is usually used for searching coins, rings, jewelry, keys, and so on. This kind of detector is good for use at home or in the backyard when you look for some lost items such as trinkets. An all purpose metal detection device are generally the ones sold at a most reasonable price.
Now that you know the various types of metal detectors, you can check for any models of these and find one to suit your specific needs. You simply have to go online and find a reliable site. You don't need to be anywhere else.