Ever wonder what's silently monitoring your home from inside walls, furniture, and ceiling cavities? This episode pulls back the curtain on covert smart home sensors—the hidden devices designed to disappear into your living space while tracking motion, temperature, door contacts, and more. Chelsea Miller shares findings from three years of hands-on testing, revealing which sensors work offline and which ones are quietly uploading your behavioral data to the cloud. If you're building a discreet smart home setup or concerned about privacy, this breakdown of protocols, detection mechanisms, and real-world use cases will change how you approach hidden automation.

• Covert sensors use the same protocols as visible ones—Zigbee, Z-Wave, Thread, Matter, Wi-Fi—but their miniaturized form factors often sacrifice onboard processing power, making ...