Silent Surveillance Detection Stickers

Sell once, earn passively: ultra-thin, adhesive stickers that change color or pattern when exposed to hidden cameras, infrared beams, or unknown WiFi/Bluetooth signals in hotel rooms, Airbnbs, coworking spaces, or public bathrooms.

The fear of hidden surveillance devices - tiny cameras, Bluetooth trackers, unknown microphones - is growing worldwide. Most detection tools require bulky equipment or technical knowledge. This idea creates a new product: cheap, disposable stickers that detect and expose invisible surveillance environments. Each sticker uses a combination of passive sensors (e.g., IR, thermal film, RF reflection foil, or magnetic ink) to detect emissions from hidden cameras or GPS/Bluetooth devices. When exposed, it changes color or reveals a hidden pattern. Users place them discreetly on mirrors, vents, light fixtures, or beds. The product is sold in multi-pack bundles (e.g., 10–50), with refill subscriptions. It’s perfect for travelers, women, journalists, activists, or anyone concerned about privacy. Zero moving parts, ultra-low cost, and high-profit margins - making it a true physical passive-income product.