How to find the listening device

To understand the monitoring equipment, you can entrust a professional testing team to provide on-site service, or buy professional testing instruments according to your own demands to conduct your own investigation.

Technically speaking, anti-monitoring is a comprehensive professional discipline. It integrates communication engineering, radio technology, electromagnetic research, information science, information security science and other disciplines. In the anti-stealing industry, there is a saying that describes the current situation of stealing electricity and anti-stealing. "One person hides a hundred people to find it", which is enough to see that the cost of anti-stealing electricity is much higher than that of stealing electricity. Professional anti-monitoring is not as simple as searching the environment once with detection equipment.

Before anti-theft detection, professional technical teams need to do a lot of basic work, including a detailed understanding of work, family environment, interpersonal relationships, work relationships, family relationships and so on. Then, according to the obtained information, the leakage path is analyzed and judged, and the detection scheme for the environment to be detected is further formulated. You can buy RF signal detectors, infrared detectors, magnetic field detectors, etc.

With the help of professional instruments.

1. Use spectrum analyzer to comprehensively detect and compare the wireless signals in the detection area.

2. Use the broadband signal receiver to scan every room in the detection area carpet, and check and locate the equipment with wireless transmission function.

3. Use the nonlinear node detector to physically detect the key parts in the detection area, and investigate the possible eavesdropping and photo stealing equipment with storage or timing emission.

4. Use the wireless network signal detector to identify the terminal under the existing wireless network and find the illegally connected equipment; Detect whether there are unknown wireless networks around and inside the building.