I found a suspicious new smoke detector in my apartment. How can I tell if it's a hidden camera? - Quora
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The Smoke Detector is Triggered by a Trickle of Dum, the Red Indicator Lights Up. White Background Stock Photo - Image of alarming, light: 124396848
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Photoelectric Alert Smoke Detector Flashing Red,High Sensitivity,Wireless - Buy Photoelectric Smoke Detector,Alert Smoke Detector,Wireless And Sensitive Product on Alibaba.com
![Somebody got so annoyed at the blinking lights in my hotel room's smoke alarm that he/she put band-aids over the lights. : r/mildlyinteresting Somebody got so annoyed at the blinking lights in my hotel room's smoke alarm that he/she put band-aids over the lights. : r/mildlyinteresting](https://preview.redd.it/z5rn3osoh7711.jpg?width=640&crop=smart&auto=webp&s=f787fe5ebc03ab28265dabb4117ce4d10a7c86ab)