The new Prizm 4 has depth reading as you detect. Once you've detected a good target, the display indicates how deep to dig. There are no extra steps as it automatically appears on the screen. The target I.D. gives an indication of possible targets whilst you detect. The 5 Range Discrimination adjusts so you pick what you want to see and hear. You can either hear and see everything, or just the good stuff. Warranty: 2 year. Weight: 1.18kg.