This smoke alarm is completely wireless. It uses radio frequency in order to send and receive messages to sound a signal in the case of a fire in your home. The alarm is battery-powered. This feature allows you to install multiple different connected alarms without any hassle of rewiring the...
10. Suitability for use with a variety of classes of sounding devices due to the use of an adaptable Alarm Drive Circuitry and equipment. 11. Ability to continue emergency operation in the case of loss of normal power due to the inclusion of an emergency back-up power supply. ...
The system also includes heat-sensing switch means in the alarm circuit for sounding the alarm in the event of fire, smoke or heat without the necessity of activating the magnetic or inside switches. 展开 收藏 引用 批量引用 报错 分享
Unless incorporated into this system, a local alarm will not notify a fire department. Automatic systems also consist of a local alarm and an alarm that notifies a central station or a fire department. Many large industries have a central, proprietary monitoring station that checks smoke, fire,...
doi:10.1002/2475-8876.12453Minegishi, YoshikazuTakahashi, WataruIkehata, YukaJapan Architectural Review
A fire alarm system may not provide timely or adequate warning, or simply may not function, for a variety of reasons: Smoke detectors may not sense fire where smoke cannot reach the detectors such as in chimneys, in or behind walls, on roofs, or on the other side of closed doors. ...
a"New Construction": "Addressable" hard-wired smoke detectors, with a local sounding device, are required in each "living area". Guestrooms provided with "addressable" smoke detectors may be programmed with a two-stage fire alarm and detection system. “新建工程” : “可寻址的”硬联线烟检测...
smoke, fire, an intruder, etc. The signal may also be given as a result of the action of a sensor, for example, where a fire is sensed by a flame or smoke sensor and has automatically caused circuitry to change from a quiescent state to an alarm state without human intervention. This...
cracked from the heat was broken to allow for ventilation of the area. The fire was also taken to a Third alarm, bringing in resources from Fitchburg, McFarland, Monona and Waunakee. The fire damage loss due to fire with significant radiated heat and smoke travel is estimated at $15,000...
spot on the wall to close the bolt and activate the system or open the bolt and deactivate the system to permit authorized entry from outside. The system also includes heat-sensing switch means in the alarm circuit for sounding the alarm in the event of fire, smoke or heat without the ...