2g 3g 4g+gps+gsm+wifi device brok en network mobile phone signal shie ld jam mer detector, Silver

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, frequency(1mhz-12ghz): once there is a suspicious signal, you can use it to
detect it there is a suspicious signal in your car,you can use the detector to find it
out with magnetic light detection device, high sensitivity, large frequency detection with precision sensor antenna, easy to use, easy to search the cars, office, room anywhere,
even people is hard to touch or see it. the detector is reliable and accurate
via sound and light alarm..syi