On some devices you’ll also find a sensitivity dial. This might save you quite a bit of stress, as you won’t be looking for surveillance equipment where there actually isn’t any. If you have a radio station nearby, a cheaper unit might pick it up, while a higher end one knows it’s a radio station and blocks it out. Something that’s a bit more high end will easily filter out ambient signals. For example, a cheaper unit might pick up just about anything. However, if that camera isn’t actually transmitting in real time, you might not find any signal being projected.Īs you go up in price, the first thing that improves are the filters. If a camera is transmitting information back to the source, it might also make use of these signals. If you’re setting it up for surveillance specifically, it may make use of Wi-Fi or Bluetooth. For example, if you set up an audio bugging device via a cell phone, it might look like a cellular signal. Check our listing of the best RF bug detectors available now!ĭepending on how the device is used, different devices may make use of different frequencies. For example, Bluetooth and Wi-Fi can be detected at 2400-2480 MHz, while a GPS tracking device is either between 824 and 846 MHz, or between 880 and 920 MHz. An audio bugging device, or a hidden camera, will appear either as a cellular, Wi-Fi or Bluetooth signal. Therefore, a bug detector needs to be able to pick them up. For example, RFID works at 3-30 MHz, while Bluetooth, GPS, Zigbee, and mobile phones work at 300-3000 MHz. Various devices will emit various frequencies, and you can seldom pick them up. If you’re on a tight budget, it is a tight battle between this, and the AMOMB one place higher on our list. Fortunately, the build quality isn’t bad, even though not great, and battery life is manageable.
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