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Ningbo Ambest Electronics Co., Ltd.

Smoke Detector, Cigarette Smoke Detector, Smoke Detector Prices manufacturer / supplier in China, offering 48V, Non-Addressable Smoke Detector with Relay Output (SNC-300-SP), State of The Art Fire Alarm Control System, 1 Loop (6001-01), Big Infrastructure Fire Project Fire Alarm Control System, 2 Loop (6001-02) and so on.

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Supplier Homepage Product Non-addressable Detector 48V, Non-Addressable Smoke Detector with Relay Output (SNC-300-SP)

48V, Non-Addressable Smoke Detector with Relay Output (SNC-300-SP)

FOB Price: US $1 / Piece
Min. Order: 2,000 Pieces
Min. Order FOB Price
2,000 Pieces US $1/ Piece
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Production Capacity: 200, 000 PCS/Month
Transport Package: 1/Box, 100PCS/CTN
Payment Terms: L/C, T/T, D/P, Paypal, Western Union

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Basic Info
  • Model NO.: SNC-300-SP
  • Application: Home, Industry
  • Operating Voltage: DC(12/24/48)V
  • Alarm Indicator: Dual Red LEDs
  • Reset Time: <5s
  • Specification: UL 268 / EN 54-7 / CE
  • HS Code: 8531100000
  • Certification: CE, ISO
  • Product Approval: UL521/UL268
  • Sampling Time: <(3~5)S
  • Remote LEDs Output Current(Max): 15mA
  • Trademark: Numens
  • Origin: Ningbo, China
Product Description
SNC-300 non-addressable photoelectric smoke detectors are state-of-the-art detectors suitable for 
connection to 2-wire or 4-wire non-addressable fire detection control and indicating equipment.
Advanced electronics in conjunction with a photoelectric smoke sensing chamber provide early detection 
of fire and high immunity against unwanted alarms. 

The SNC-300  non-addressable detector range provides fire detectiom and alarm system designers with a
Standards-compliant economical smoke detector for fire safety and property protection applications.



·    Advanced algorithms provide analogue detection discrimination
·    Surface-mount device(SMD)  circuit board design
·    High immunity against unwanted alarms
·    Stable smoke sensing chamber. No adjustment or replacement required
·    4-wire models for DC 12V,DC 24V and DC 48V operation
·    4-wire models available with a N/O alarm relay output
·    4-wire models available with relay base
·    Sleek low-profile huosing design
·    Dual LEDs for 360° visibility
·    Low maintenance
48V, Non-Addressable Smoke Detector with Relay Output (SNC-300-SP)
48V, Non-Addressable Smoke Detector with Relay Output (SNC-300-SP)


Operating voltageDC (10.8~26.4) V/ DC(40~60)V
Start-up current≤ 135 µA
Start-up time≤ 30 s
Quiescent current≤ 60 µA  /   ≤80 µA
Sampling time(3 ~ 5) s
Alarm indicatorDual red LEDs
Reset voltage≤ 1 V
Reset time≤ 5 s
Alarm response threshold(0.08 ~ 0.15) dB/m
Alarm output relaySPST. N/O.1.0A@DC30V/0.5A@AC125V
Operating temperature(-10 ~ +55) °C
Operating humidity(0 ~ 95) % RH, non-condensing
Dimensions (excluding contacts)Φ 102 mm × 34 mm

 About Numens
Formed in 2010, Numens is an emerging supplier of professional safety products for fire detection and alarm systems. Numens supplies an extensive range of addressable, non-addressable and residential products for life safety and property protection applications. Offering over 150 products and supplying to more than 100 customers around the globe, we are committed to establishing long-term relationships with our customers and suppliers.
Mission and Values
Our mission is to provide building owners with high quality, inexpensive fire detection and related equipment that will protect lives of building occupants and minimize damage to buildings through early detection and warning of a fire emergency.
Our engineers, production and support staff will design, manufacture and deliver products with performance and quality to always delight our customers.
Success in our future depends on the integrity and ethical behaviour of all our employees. We support and nourish our staff to improve and grow as responsible members of a civil society. We take personal responsibility for our actions and respect others with different views, as we continually strive for improvements for our customers, our company and ourselves.
Sales, engineering and production are located in Ningbo, China; just 2 hours south of Shanghai. Our Ningbo site has 10,000 m2 (100,000 ft2) of floor-space. From product concept, electrical and mechanical design, we can provide the solutions to detection needs. Our manufacturing is vertically integrated, with our capabilities including tool-making, plastic injection moulding, SMT manufacturing, and final assembly and test.
You can view our product range on our website or in our product catalogue (document number 34-0001).
Standards and Approvals
Standards approvals are important to us, giving customers additional confidence of the performance and reliability of our products. We are certified to ISO 9001:2008 and our products carry approvals to major European and North American Standards.
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