もっと例文: 1 2 3 4
- Some schools are planning to install complicated systems with electromagnetic door alarms.
- It has an elaborate security system, surveillance cameras, and a front door alarm.
- Response to security door alarms or response to medical calls might be improved with this equipment.
- Some municipalities require the use of door alarms when the house is being used as the fourth wall,
- To actually detect when the door is open, a standard magnetic door alarm system seems like it would work.