Ideal for the intermediate relic hunter, Teknetics Delta 4000 Metal Detector has nine sensitivity adjustments and eight segments of discrimination for fine-tuned performance. Its large, easy-to-read LCD screen and three detection modes All-Metal, Discrimination and Pinpoint will have you zeroing in on buried metal like a pro. Depth readout lets you know how hard youll have to dig. Preset ground balance. Low-battery indicator. Manufacturers limited five-year warranty. Made in USA. Batteries: One 9 volt (not included). Applications: coin, relic, jewelry. Length: adjusts from 41-51. Search coil: 11 DD. Frequency: 7.69kHz. Wt: 2.3 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Metal Detectors.