Gold Member Since 2012
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Ningbo Ambest Electronics Co., Ltd.

Smoke Detector, Cigarette Smoke Detector, Smoke Detector Prices manufacturer / supplier in China, offering 48V, Smoke Detector/Smoke Alarm with Relay Output (SNC-300-SR4), 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 New Products 48V, Smoke Detector/Smoke Alarm with Relay Output (SNC-300-SR4)

48V, Smoke Detector/Smoke Alarm with Relay Output (SNC-300-SR4)

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Port: Ningbo, China
Production Capacity: 50000PCS/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: SNC-300-SR4
  • Signal Transmission: Wired Alarm
  • Certification: UL, En
  • Sensor Type: Infrared Alarm System
  • Transmission Mode: Cable
  • Operating Voltage: DC(12/24/48)V
  • Alarm Indicator: Dual Red LEDs
  • Reset Time: <5s
  • Transport Package: 100PCS/Ctns
  • Origin: Ningbo, China
  • Type: Smoke Alarm
  • Working Mode: Active
  • Application: Indoor
  • Working Principle: Electro-Optical Type
  • Usage: Fire, Smoke
  • Sampling Time: (3~5)S
  • Remote LED Output Current(Max): 15mA
  • Trademark: NUMENS
  • Specification: dia. 102*45mm
  • HS Code: 8531100000
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, or to addressable fire detection control and indicating equipment that can accept non-addressable type detectors.
Advanced electronics in conjunction with a photoelectric smoke sensing chamber provide early detection of fire and high immunity against unwanted alarms.


·    Photoelectric smoke sensor
·    Analogue detection discrimination
·    Dual LEDs for 360° visibility
·    2-wire and 4-wire models for DC 12 V and DC 24 V operation
·    4-wire model for DC 48 V operation
·    4-wire models available with a N/O alarm relay output
·    4-wire models available with auto-reset
·    2-wire models available with remote LED output
·    Connects to zone monitor for use with addressable control and indicating equipment

operating voltageDC(12/24/48)V
start-up current≤100μA
start-up time≤30s
quiescent current60μA
sampling time(3~5)s
alarm indicatorDual red LEDs
remote LED output current(max)15mA
reset voltage≤1V

Ordering Information:
Part Number2-wire4-wireRemote IndicatorRelay OutputAuto-Reset
SNC-300-S2 a----
SNC-300-SL a---
SNC-300-SR a---
SNC-300-SRR a----
SNC-300-S2-U b----
SNC-300-SL-U b---
SNC-300-SR-U b---

Q1:Are you a manufacturer or trading company?
A1:Numens is a professional fire alarm system manufacturer.
Q2:What kind of production service do you provide?
A2:The whole fire alarm system,include Addressable system, Conventional system, Residential system and so on....
Q3:What kind of certification do you have?
A3:Numens was EN,BSI,UL,SGS certified and all the products were produced under these major international standard .
Q4:What is the lead time for new order?
A4:The lead time for new order is 25 days after confirm order.
Q5:How do I get price information?
A5:Sales representatives are responsible for providing detailed price information within 1 workday after get your inquiry.
48V, Smoke Detector/Smoke Alarm with Relay Output (SNC-300-SR4)
48V, Smoke Detector/Smoke Alarm with Relay Output (SNC-300-SR4)
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