bug detector anti spy rf signal detector bug sweeper spy scanner anti tracking strong magnetic detector for gps tracker hidden camera finder eavesdropping device jmdhkk <b>main function <br><br>1.auto search:if you want to check the room or car safe or not,you can put it in one room or car,then open the auto search,it will search automatically,once received one time of signal,the light bars will light one,if received 6 times,<br><br>the light bars will light at 6 lights,then it will sound alarm to remind you that there is a suspicious signal <br><br>2.signal detector with wide frequency(1mhz-12ghz):once there is a suspicious signal,you can use it to detect it <br><br>3.gps tracker finder:once there is a suspicious signal in your car,you can use the detector to find it out with magnetic light <br><br>application scene: <br><br>1. worry about installed wireless eavesdropper or tracking locator in the car or office; <br><br>2. worry about electromagnetic radiation leakage in household appliances like microwave ovens; <br><br>3. worry about installed candid devices to reveal personal privacy in hotels during travelling; <br><br>4. conference room for business negotiation, government offices, school invigilator, military facilities. <br><br>5. worry about suspicious wireless devices in the living environment; <br><br>6. worry about wireless devices in gambling mahjong machine sending out signals.