4 in 1 Multifunctional: On RF signal detection mode, it can any wireless bugs that are transmitting RF signals in frequency range of 1-8GHz. On magnetic field detection mode, it can any magnetic bug devices. On camera lens finder mode, it can accurately detect any cameras. On IR light detection mode, it can detect any IR cameras that are transmitting IR lights in the darkness. Upgraded Features: Designed and built with the new technology of IR Auto Scanning, this hidden camera detector can scan auto IR night vision cameras in the dark environment. The upgraded product has a more sensitive magnetic sensor chip, which can?identify the strength of the magnetic field to accurately locate any suspicious object.