alarm system works mobile 1. size:230(L)*95(W)*22(H) 50g 2.Detection object:mobile phone signal 3.Detection Range:1-20M alarm system works mobile 101A Cellular Phone Detector I. Introduction101A Cell phone signal detector can detect the cell phone signal of CDMA, GSM, DCS, PHS & 3G.The detector detects the cell phone signal, then it will output high level signals and communication signals. The ...