Take your metal detecting to a deeper level with one of the best deep-locating two-box detectors you can buy. Fishers Gemini 3 Metal Detector detects large buried objects up to 10-15 ft. deep, depending on conditions. VCO audio response delivers target pinpointing. Four-mode operation includes inductive trace, conductive trace, wide-scan inductive trace and narrow-scan inductive trace. Control sensitivity using 10 adjustments. All-metal detect mode broadens target acquisition. Manual ground balance tunes the detector for accuracy. Low-battery indicator. Manufacturers five-year limited warranty. Made in USA. Batteries:16 AA (not included). Application: Cache, relic, utility. Length:49.5 fixed. Frequency:81.92kHz. Wt:7 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Metal Detectors.