The ZC 300 is a radio frequency field strength tester with the ability to detect very weak signals (down to ambient levels of radiation that exist around us. The ambient radiation level is usually due to local FM and TV broadcasts.) The ZC 300 detects signals spanning the microwave, UHF, VHF and high frequency spectrum, covering a 1 MHz to 8+ GHz bandwidth. This includes 5.8, 5.2, 4.5, 3.5, 2.4 and 1.2 GHz covert cameras and bugs, 2.4, 1.8, and 0.9 GHz cell phones and wireless phones; 300-400 MHz walkie-talkies, car keys and garage door openers; 70-150 MHz FM transmission; 49 MHz bugs and even 27 MHz citizen-band transmissions. Detection at 2.4 GHz is so sensitive, it will detect an operating sealed microwave oven at 12 meters away and pick-up 2.4 GHz transmitting bugs at 8 meters distance.
