Sentinel Mode: A Vigilant Companion for Hotel Stays, Alerting You to Any Attempted Intrusion with Vibrating Buzzes And Rapid Flashing Lights. Ultra-sensitive Detector: Detects a Wide Range of Hidden Devices, Including Wireless Cameras, Audio Bugs, And GPS Trackers, Ensuring Your Privacy Is Uncompromised. Hidden Camera Detectors: Equipped with a Newly Upgraded Chip, Providing High Accuracy in Identifying Hidden Cameras, Micro Cameras, And Pinhole Cameras. Professional Detection: Four Modes Including Signal Detection, Magnetic Field Detection, Camera Detection, And Sentinel Mode, Covering All Aspects of Privacy Protection. Portable And Rechargeable: Lightweight and Compact, Perfect for Travel, Business Meetings, And Daily Use. Rechargeable Battery Ensures Continuous Protection. Your personal sentry against intrusion, the Sentry of Secrecy is designed to keep watch over your privacy. With its sentinel mode, it becomes your silent guardian in unfamiliar environments, alerting you to any potential breaches. Its ultra-sensitive detection ensures that no hidden devices can compromise your safety. Whether you're in a hotel room, a meeting room, or simply out and about, this device is your portable fortress, keeping your secrets safe and your life secure.