This Gold Century Model GC-1016A Metal Detector has a water proof coil and can be used in shallow water where most Gold Rings are found. This unit can be set to detect all Metals or set for Motion Discrimination to distinguish Ferrous an non Ferrous metals. It has three adjusting knobs for sensitivity, discrimination threshold and volume control. When a target is detected, a tone will be emitted from the built in speaker or optional headphones and the strength of the signal will be displayed. The signal strength meter helps to determine the target depth and size. An adjustable Arm Support that can be set for your comfort. Light weight and compact size make's this unit easy to transport and store. The auto ground balance feature make this detector so easy to use, you won't even need to read the instruction manual! Or you have the option to adjust the sensitivity and set the Discrimination function to detect all metals or ignore trash metals. This is the best entry level metal detector we have seen. Key Specifications/Special Features: - Power supply: Two 9V batteries required, static current < 12 mA - Operation Frequency: 5KHz ~ 6.5KHz - Operation modes: ALL METAL, DISC - Target Indications: Audio -1.2 speaker or earphone jack - View meter - Knobs for adjustment: SENS , DISC and VOLUME - Sensitivity: max depth > 7 for a US quarter in ALL METAL mode - Motion discrimination - Auto ground balance - 6.5 waterproof search coil - 3.5mm earphone jack (earphone not included) - Low battery indication (Red LED) - Arm support for easy carrying - Owners manual i in box or can be read on line or downloaded.

Gold Century # GC1016A