Pulse is PI (pulse induction detector) which generally are more suitable for beach saltwater hunting and less affected by ground minerals. PI detectors have a reputation for being a little deeper at saltwater beaches. Pulse detector discriminating and target id technology, doesn't compare (or even exists) with other types (which is the trade off, switching to them instead of a coin machine). Any detector made for gold prospecting, tends to find much smaller bits of junk. You can add a larger size coil for treasure hunting, these go deeper on large targets without detecting as much smaller metal bits. Check Garrett pulse see if it has a coin mode option. The older, not pulse Garrett gold detector, was like having both coin and gold detector in one machine. Don't know about new Garrett pulse, have not checked that out yet.