Tesoro says about the Golden Umax: "Full size depth, sensitivity, Four Tone Audio ID and a user adjustable Notch Filter Discriminate all placed into the lightest detector housing on the market. At less than 2 ½ pounds, the Golden µMax lets you control what you want to find. Our adjustable notch window lets you, not the engineers, decide how to pick through the pull tabs to find the nickels and gold rings, while the ED 120 discrimination knocks out all of the nasty iron."

There is an archived copy of an Eastern and Western Treasures field test of the Golden Umax at the Tesoro website. If you're new to the Golden Umax this review details in great length the main features including the threshold, sensitivity, and modes. The article then move on to field testing the metal detector where they note the Golden uMax as being light weight and great at locating coins. In conclusion they say: "The Tesoro Golden uMax possesses a number of interesting features, but the most impressive are the target ID tones, the ability to set one's own notch width, the excellent pinpointing ability, and the famous Tesoro discrimination-all neatly packaged inside a super lightweight yet rugged design."