A hidden camera detector is a compact electronic device designed to help identify and locate concealed cameras, microphones, and tracking devices in private or unfamiliar spaces. It typically uses a combination of technologies such as RF (radio frequency) signal detection, infrared (IR) scanning, and lens reflection detection to spot hidden surveillance equipment—even if it’s disguised inside everyday objects. These detectors are commonly used in places like hotel rooms, Airbnb rentals, offices, and changing areas to protect personal privacy. Many models are portable, easy to operate, and feature adjustable sensitivity levels, making them a practical tool for travelers or anyone concerned about hidden surveillance.