Good lord, they were still using the scam 'bomb detectors?!. These are small boxes with rudimentary wiring, a light bulb and a car antenna attached to it. Some even came with a picture of whatever it is you’re supposed to be looking for to insert in the device. It’s an electronic divining rod and even more useless. Of course, they charged thousands for each, making the ‘inventor’ rich in the process. A total and complete scam that has cost many lives.
