The Prizm 3 offers depth reading as you detect. Once you've detected a good target, the display indicates how deep to dig, there’s no extra steps as it’s automatically displayed on the screen. The Prizm target I.D. Gives indication of target as you detect. 5 Range Discrimination adjusts so you pick what you want to see and hear. Hear and see it all, or just the good stuff. Adjustable Sensitivity maximizes detection depth in varying grounds. Pinpoint/All-Metal Mode makes locating your target easier. Warranty: 2 year. Weight: 1.13kg.