Photoelectric Smoke Alarm 929

Established in 2004, DSW has extensive experience in product design, certification, and manufacture of various alarms and premium electrical household appliances and accessories.
Our main products include different varieties of smoke alarms, carbon monoxide detectors, gas and water alarms, intelligent wireless alarm systems, and other home electronics.

The 929 wired Smoke detector is one of the advanced Photoelectric smoke alarms.
When it detects smoke, it will output a signal immediately and trigger the connected unit to work, which tells you in advance that fire will occur, avoid unwanted loss, and take your safety and convenience.
The Detector uses an infrared photoelectric chamber.
Detection is accomplished by sensing scattered light from minute smoke particles or other aerosols.
It is easy to install using the two screws provided to mount the unit to the ceiling or wall.

What are the different types of smoke alarms?

Ionization smoke detectors use a small amount of radioactive material that ionizes air molecules to create positively and negatively charged molecules, generating a small electrical current. Smoke will cause the current to be reduced and the alarm to sound when it comes into contact with the ionized air. Smoke alarms that use Ionization detectors are usually less expensive than those with photoelectric sensors.
Photoelectric smoke detectors use a light and a photosensitive pixel. As smoke enters a chamber, the light scattered by it is detected by the photosensitive cell. This causes the alarm to sound.

What type of smoke alarm do you need?

Generally, smoke detectors are battery-powered, hardwired, or plugged into an outlet.

Battery-powered detectors can be installed anywhere. The batteries are usually replaceable (usually 9-volts or AA) or can be sealed lithium batteries lasting ten years.
Hardwired detectors are powered by special wiring that is usually only found in newly built or renovated homes. Hardwired detectors are those that have wires running into the wall or ceiling.
Plug-in detectors are powered by an outlet. Hardwired detectors and plug-ins use backup batteries that take over in case of an outage. Backup batteries should be changed annually.

WHERE NOT TO INSTALL SMOKE ALARMS

1. First, you must install one item in every bedroom and route way at least.
2. A stairway is essential for you to rush out when fires occur, so a smoke detector must be installed on the top of the stairway.
3. You have at least one smoke detector in every space of every floor, including finished attics and basements.
4. Install one Detector beside every electric facility.
5. You’d better Install smoke detectors in the middle of the ceiling because smoke always spreads.
6. If some reasons cause you can’t install them in the middle of the ceiling, you also need to install them at least 10cm away from the wall.
7. If you like to install them on the wall, they should be installed 10-30.5cm away under the

The product is a new type of photoelectric smoke detector; when it detects smoke twice, it will immediately output a signal and trigger the connected unit to work, which tells you in advance that fire will occur and avoids unwanted loss, taking you safety and convenience.