Learn more (GTI 2500 Manual) - Garrett

You can search silently or at any level ofconstant sound. It is recommended thatyou always operate the instrument at aminimum level of audible sound. You canhear the audio increase sharply whenevera desirable target is encountered.(Remember, a cursor will indicate everytarget.) When headphones are used, itwill usually be necessary to decrease thethreshold level since sound is more audiblethrough headphones.FrequencyThis detector is capable of operating ateight different detection frequencies orchannels, which you will find valuable ifyou participate in competition hunting orif you enjoy hunting with others. In fact,operating your GTI 2500 at a different frequencymight be necessary any time twoor more detectors are being used so closeGraphic Target Imaging 2500 - 41