2013 New Smoke Alarm Wireless (SP729)

2013 NEW Smoke Alarm Wireless (SP729)

Specification:
(SP729)
Smoke alarm /smoke detector
Smoke detector, fire detector, fire alarm
Power Source: DC9V
Static Current: <10uA
Alarm Current: <10mA
Alarm Sonority: > 85 dB (3m)
Low Voltage Alarm: 6.5V± 7.5V
Work Temperature: -10~+50

1) Models: Smoke detector with or without remote LED indicator
2) Advanced detection and discrimination algorithms
3) Easy installation and maintenance
4) Polished low-profile housing design
5) Durable sensor head, no need for replacement
6) SMD circuit board design: Satisfactory quality and reliability guaranteed
7) Integrated heat detector
8) Complied with UL268 or EN54 standards
9) with relay output available
10) SD

This is a fire alarm that has the function of somke alarming and heat sensing. This detector is designed to give early warning of developing fires by giving off the alarm sounds from its built-in alarm horn. It can provide precious time for you and your family to escape before a fire spreads. When ambient temperature reaches preset valueand it output signal immediately triggering connected unit to work. Be suitable for the industrial and civil building where there is explosive and combustible gas.

Function:
(1)When putting in a battery, the buzzer sounds once to promote power on successfully.
(2)When the battery shows low voltage, it sounds once every half minutes with LED lighting at the same time.
(3)When there is something wrong with the detecting parts, the annunciator sounds twice every 10 seconds with LED lighting at the same time.
(4)When there is no smoke alarm and pressing the button, annunciator sounds third like smoke alarm voice.
(5)When there is no wrong with the detecting parts and smoke alarm, pressing the button for about 8 seconds, the buzzer sounds once to promote refresh mode. And the buzzer sounds third to finish refreshment. Make sure this refreshment is under smokeless both in alarm shell and environment in case not effect on smoke alarm's sensitivity.
(6)When the smoke alarm works, pressing the button to the silent mode, the buzzer is silent with LED continuing lighting alarm. The silent mode can last 15 min with button invalid.

Principle:
The smoke alarm works on the principle that infrared scatters in the smoke to probe the smoke which is generated by the incomplete combustion at the initial stage of the fire. It consists of photoelectric system, signal processing identification circuit and alarm circuit. The infrared scatters on the surface of the smoke when the smoke enters the darkroom of the detector, then the photoelectric diode receives the scattered light and generates the photoelectric signal current. The photoelectric signal generates the alarm signal after being processed by the identification circuit, accordingly the purpose of alarming is achieved.