
Hidden cameras today can be very realistically disguised in everyday objects such as clocks, remotes, smoke detectors, adapters, and more. They are very hard to spot with the naked eye if you aren't picking up and checking every single product in a room, and realistically, who is? If the cameras are transmitting video or audio via Wi-Fi or Bluetooth, they can be found with an RF detector, however many cameras don't transmit at all and simply save recordings to a local SD card, meaning the best solution for finding them will be with an optical detector.
Instead of catching surrounding RF signals, optical detectors work by identifying the reflection of camera lenses. Optical detectors will find the cameras even if the camera is active, in standby, transmitting, non-transmitting, in motion detection, or even powered off. Basically, the operational state of the camera does not matter for the optical detector to find it, making it the best solution for camera detection.
Optical detectors use pulsing LEDs, mostly in red or green color, and a specialized viewfinder to find a lens reflection. Once the light hits the camera lens, even the tiniest ones, it reflects back to you as a bright sparkle spot through the detector's optical filter. Once you power the detector on, you look through the viewfinder across the room, and while the LEDs are pulsing, if there is any camera in the room, the detector will show it as a bright spot, making it easy to detect, locate, and remove. This method works on all kinds of cameras, including wireless, wired, pinhole, and embedded cameras.
This detection method is essential for TSCM sweeps, and as they are mostly very easy to use, you can also use them in hotel rooms, offices, changing rooms, rental apartments, Airbnb or Booking, and any kind of meeting spaces.
New 2026. update: Read more about the RD-30 bug detector and see how to upgrade.
After explaining the basics, let's now compare three popular solutions for camera detection:
If you are new to optical detection or are considering upgrading your kit, the following information will help you understand the best features and limitations of each model, as well as note in which situations each is best used.
| Model | RD-30 | WEGA-i | OPTIC-2 |
|---|---|---|---|
| Type | Optical + RF detector | Optical camera detector | Long-range optical camera detector |
| Detection Range | 1–5 meters | 2–10 meters | 0.5–50 meters |
| Portability | Yes, pocket sized | Yes, pocket sized | Yes, mid sized |
| Viewing Type | Monocular | Monocular | Binocular |
| Use Level | Entry-level | Entry-level | Professional |
| Environment | Rooms, hotels | Offices, boardrooms | Large spaces, auditoriums |
| Price | € | €€ | €€€ |
Optical detection is a very important step in TSCM sweeps. While essential, RF sweeps cover only part of the spectrum. Primarily, they won't cover cameras that are not transmitting, and the reality is that a lot of them record only directly on SD cards and don't transmit. If you are a frequent traveler or TSCM professional, choosing the right equipment ensures your privacy is safe and your environment stays clean of spyware threats, and tools like RD-30, WEGA-i, and Optic-2 each serve a different role, but depending on your need, they can give you the full visibility needed to detect covert cameras.