Features of 4 wired smoke detector :

1.Power interrupt reset / automatic reset optional
2.Non-polarity power input

3.Alarm indication: red LED on
4.Alarm output NO / NC optional
5.SMT technology, strong stability
6.Metallic shield, good anti-interference(20v/m-1GHz)

Parameter of 4 wired smoke detector :

1.Operating voltage:DC12V ~ DC30V
2.Working current: 12mA ( Relay-NC)
                                 500uA (Relay- NO)
3.Alarm current: 10mA ~ 25mA
4.Alarm output: NC / NO optional; contact capacity: DC28V 100mA
5.Reset mode: automatic reset / power interrupt reset optional
6.Alarm indicator light: red, normally on when alarming
7.When space height is 6m ~ 12m, the protected area is 80m²;when space height is less than 6m, the protected area is 60m². The specific parameters should be subject toAutomatic fire alarm system design specifications(GB 50116).
8.Executive standard: EN54-7
9.Sensitivity: 0.5db/m(±0.1db/m)
10.Operating temperature: -10 to +55 centigrade 
11.Relative humidity:≤ 95%, no condensation
12.Dimension: Φ103*53mm (with base)

More pictures about NO/NC Optional 4 wired smoke detector ALF-S041:

Smoke Detector bottom diagram:

Smoke Detector Base Diagram:

Our Advantage of NO/NC Optional 4 wired smoke detector :

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 for smoke detector is our long term target.

Why choose BOS-AILIF?

1.We are not the trading company,but a proffesional manufacturer for many years

2.We have high competitive factory price for 4 wire smoke detector.

3. Our professional designers are always pursuing to developing  new and unique products with their innovative  spirits,so OEM & ODM are welcome.

4. We have been specialized in alarm products (include smoke detector products) for many years and got a lot of  reputation and  long-term business partners.

5.Our products are tested by authorities,and we promise the quality.

Company Introduction:
(1)Having our own factory which provides you the most competitive price for 4 wire smoke detector .
(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

NO/NC Optional 4 wired smoke detector(ALF-S041)