I don't think about it, so I recently added alarm equipment to the ceiling. There are three types of home fire alarms, one is a smoke alarm, one is a gas alarm, and the other is a comprehensive type that combines both smoke and gas alarm functions. These two types of alarms are divided into alarm modes, which can be classified as stand-alone, networked, or wireless. Stand-alone type is a single alarm device working independently, with abnormal conditions will directly flash the indicator and emit high-decibel alarm; network-type can be connected through the wired connection to the supporting security host, through the host to send an alarm; wireless is through The wireless signal is sent to the matching wireless security host and the host sends an alert.
Independent smoke detector <br> <br> Product description:
â—† Photoelectric detection mode â—† Ceiling installation â—† Optical labyrinth â—† Low-power CMOS microprocessor â—† Manual test, manual reset function â—† Stable working performance â—† Unique structural design, dust-proof, insect-proof, anti-interference, external working voltage 9VDC/ 12VDC
Working current static electricity is less than 10ua alarm working current 10-30ma
Smoke sensitivity meets ul217 standard test value 3.2% per foot Weak gray smoke detectors have reactive work environment -10°C~50°C
Built-in buzzer, the alarm sound is particularly harsh, the side of the test button press can hear the alarm sound, the use of high-life detection chip, use up to 10 years, smoke reaches a certain concentration will immediately alarm.
The alarm volume is 85 decibels at 10 feet round size R=105mm, H=38mm
start installation:
Connect the positive and negative batteries to the detector's battery connector and push the battery into the battery compartment.
Secure the card holder to the ceiling with the pre-selected mounting position.
Secure the card holder to the ceiling with the pre-selected mounting position.
The two mounting holes at the bottom of the detector are aligned with the two chucks of the card holder and can be jammed with a slight rotation.
Test to press the test button or light a cigarette, close to the detector and let the smoke swirl around the detector.
About 30 seconds or so, the detector sensed the smoke and started the alarm: the red light flashed and made a harsh hum. It will not stop until the smoke disperses.
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