EST101A 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 high level signals will be output to the annunciator which controlled by the numerical control box, the cell phone signal or the surveillant equipment. The communication signals will be transported to the computers main unit, and registered the correlative message in the computer for memory.

101A Cellphone signal detector