The first of its kind, all-in-one detector that is easy to use for any TSCM level. Find GPS trackers, cell phone signals and other wireless protocols easily using this Multi-Channel Digital Detector. The 1217 will pick up with higher accuracy 2,3,4 and 5G mobile bands. Other detection devices become overloaded with signals from the base station rendering them practically unusable in large cities. The DD1217 is designed to avoid interference from base station.