I. Core Technology Principles
1. Wireless Signal Detection 
   - Radio Frequency (RF) Detection: Scans common wireless frequencies used by surveillance equipment (such as 2.4GHz/5GHz WiFi, Bluetooth, GPS, etc.) to locate suspicious signal sources.
   - Magnetic Field Detection: Some devices use magnetic sensors to identify magnetic components in cameras or eavesdropping devices. 

2. Reflective Detection  
   - Infrared/Laser Scanning: Utilizes the property of infrared light reflecting off camera lenses, using infrared LEDs or lasers to search for reflective points.

II. Core Functions
- Multi-Mode Detection: Combines signal scanning, optical reflection, and physical inspection (e.g., thermal imaging).
- Wide Coverage Range: Supports wireless signal detection within a 10–50-meter range (actual performance may vary due to environmental interference).
- Portable design: Independent display screen
- Anti-tracking alert: Detects GPS/Bluetooth trackers and disconnects wireless connections..

 Usage tips
1. Hotel inspection steps  
   - Turn off the room's power supply and use an infrared detector to scan hidden locations such as outlets, smoke detectors, and decorations.  
   - Enable RF detection and observe signal fluctuations (monitoring devices typically emit signals continuously).  
   - Focus on items directly facing the bed and bathroom.

2. Anti-tracking Measures
- Use a detector to scan common hidden locations in the car, such as the OBD interface and under the seats.  
  - Turn off your phone's Bluetooth/Wi-Fi functions to prevent tracking by wireless beacons.