Traditional Culture Encyclopedia - Hotel franchise - What's that glowing red on the roof of a hotel room?
What's that glowing red on the roof of a hotel room?
This is a smoke alarm. When there is a fire, it detects the sprinkler. If the place where the red light flashes is not on the roof, you may want to pay attention to whether it is a camera. Another good way to distinguish the camera from the temperature alarm is that the red light flashes at the same frequency, while the camera is always red and does not flash.
- Related articles
- Hangzhou soft-mounted company inventory
- "90 Years" Part II: Do you regard being a car club as the owner of a lifelong career?
- Eight scenic spots in Foshan
- How about Luliang Shuangyu Holiday Hotel?
- What's the telephone number of marketing center in Huang Yingdong County, Jining?
- What are the 3-star and above hotels in Chongqing?
- What time does Yucai Hotel Bath Center close?
- Introduction of tourist attractions in Qinghe County Tourist attractions in Qinghe District
- Guangxi parent-child summer resort introduction Guangxi parent-child summer resort introduction picture
- Dujiangyan hot spring hotel, which one is good, each one has high value.