Description [Sekretesskydd] This product uses passive wireless infrared scanning technology to detect: eavesdropping, phone tapping, meeting tapping, GPS location tracking, vehicle eavesdropping, wireless keyhole cameras, wired cameras, electrical radiation sources, etc. It effectively prevents eavesdropping and espionage while protecting personal privacy information and confidentiality [5 känslighetsnivåer] Adjusting the potentiometer changes sensitivity to detect areas within 30 meters (Increased sensitivity, extended detection range; decreased sensitivity, reduced detection range; faster and more accurate identification of radio wave sources) [Många detekteringslägen] Multiple detection modes: 1. RF wireless signal detection 2. magnetic field signal detection 3. LED signal display detection 4. flashlight additional lighting. RF detector can detect radio waves, 2G/3G/4G mobile signals, SIM cards. Frequency detection range: 1MHz - 6.5GHz [Hållbar och ] Lightweight and compact design, suitable for hotels, conference rooms, bathrooms, changing rooms, homes, offices, examination rooms. Built-in rechargeable battery with up to 30 hours standby time after charging. No need to replace batteries. More convenient to use and carry [Enkel och lätt att använda] Despite its many functions, the product is very easy to use. Simply switch between functions using the mode button and sensitivity adjustment button. Even beginners can quickly master its operation