Search coil covers protect the bottom of your loop from excessive wear. Abrasive surfaces such as sand, heavy brush and desert rocks can damage the loop. Having to share one detector between several children is not going to get anyone interested in the hobby. Try to look for the best bargain by enumerating the features you are going to need against the one that you can leave off. It can be as simple or elaborate as you like. The other coil called the 'Receiver Coil' acts just like the name implies it receives frequencies or data that come or 'bounce' back from the objects the transmitter coil detects in the search area. White's Metal Detector Company has popularized this coil and made it very easy to pinpoint targets. I recently sold a tin that contained candies, which I bought about a month ago. When you are first learning to master your metal detector, try a vacant field or your own back yard.
< BACK