Product name-Alarm System/Independent Smoke Detector/ Smoke Sensor ALF-SO31

Product classification:Independent Smoke Detector

Characteristic: Independent Smoke Alarm; Batteries Power Supply; Indoor Used;High Quality and Long Service LIfe



◆ Dedicated chip signal processing,and more energy efficient, more stable

◆ Alarm output: sound and light alarm

◆ Infrared photoelectric sensor

◆ Anti-electromagnetic interference

◆ Be able to adapt to changes in the environment

◆ Dust and pest proof,anti-white light interference


Operating voltage DC 9V battery
Standby current <15μA
Alarm current <30mA
Operating Humidity ≤95% RH
Detection area 20 m2
Sensitivity 2.06% ft
SPL 85 dB / 3m (10ft)
Size Φ107 * 36MM


Our advantage:

1.The same product,the lowest price.

2.The same price,the best quality.

3.The same quality,the fast delivery time.

To provide our customers with best price and quality is our long term target.


Our company:

(1)Having our own factory which provides you the most competitive price.

(2)CE,FCC,ROHS,IP55 for some products and ISO9001 certificate make you satisfied with quality when using our products.

(3)Professional team provide you the latest design and satisfying sevices.

Thanks for your time of viewing.

Please contact me freely to get more information.


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