![Blackt Electrotech BT35 DIY Smoke Detection Sensor System with Alarm 85 dB Easy Installation and Maintenance Free for Small Family, Hotel, and Apartment (White) : Amazon.in: Home Improvement Blackt Electrotech BT35 DIY Smoke Detection Sensor System with Alarm 85 dB Easy Installation and Maintenance Free for Small Family, Hotel, and Apartment (White) : Amazon.in: Home Improvement](https://m.media-amazon.com/images/I/41Sg0nMg7gL.jpg)
Blackt Electrotech BT35 DIY Smoke Detection Sensor System with Alarm 85 dB Easy Installation and Maintenance Free for Small Family, Hotel, and Apartment (White) : Amazon.in: Home Improvement
![Close Up of a Smoke Detector Attached on the Ceiling of the Hotel Room in White Stock Photo - Image of detectors, attached: 155662476 Close Up of a Smoke Detector Attached on the Ceiling of the Hotel Room in White Stock Photo - Image of detectors, attached: 155662476](https://thumbs.dreamstime.com/z/close-up-smoke-detector-attached-ceiling-hotel-room-copy-space-white-155662476.jpg)
Close Up of a Smoke Detector Attached on the Ceiling of the Hotel Room in White Stock Photo - Image of detectors, attached: 155662476
![WITT: On the ceiling in a hotel. There is a smoke detector in the same room as this. It's completely smooth on all sides besides the gray thing in the middle : WITT: On the ceiling in a hotel. There is a smoke detector in the same room as this. It's completely smooth on all sides besides the gray thing in the middle :](https://i.redd.it/x7teqxiwbh761.jpg)