Inspect smoke detectors, clocks, USB chargers, power strips, air purifiers, and other small electronics for unusual holes or lenses
Look for tiny reflections from lenses using a flashlight at different angles
Check for devices that seem out of place, newly installed, or oddly positioned
Scan the room for blinking lights, indicator LEDs, or unusual wiring
Use a radio-frequency detector to look for wireless camera signals
Use a phone camera to check for infrared light in dark areas
Turn off the lights and look for infrared LEDs glowing on hidden cameras
Examine mirrors for suspicious placement or the “fingernail test” if concerned about a two-way mirror
Check vents, shelves, picture frames, plants, and decorative items for concealed devices
Review Wi-Fi network devices for unknown cameras or unfamiliar connected devices
Ask the property owner or host directly about any security devices in the room
If you find a suspicious device, do not tamper with it and contact the appropriate authorities or property management