2/4 Wire Factory wholesale Smoke Alarm Smoke Detector

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US $3.2-3.8 / Pieces | 100 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
4 Wire Factory wholesale Smoke Alarm Smoke Detector
EN54-7 UL268
Dia 103 x 48mm
2 wire conventional
Color Box
0.5dB/m ( 0.1dB/m)
Operating voltage:
Fire Alarm
Hard Plastics
100000 Piece/Pieces per Week
Packaging & Delivery
Packaging Details
Color Box or As customer's request
CTN SIZE: 56X47X35.5cm
G.W / N.W: 22.5/21.5kg
Lead Time :
Shipped in 10 days after payment
Product Description
2/4 Wire Factory wholesale Smoke Alarm Smoke Detector

Product Name2/4 Wires Photoelectric Smoke Detector Standard EN54-7 UL268
Item No. SD-604-4
Size Dia 103 x 48mm 


  • 1. Smart adopted, high stability
  • 2. Low standby current
  • 3. Anti-RFI & Anti-EMI
  • 4. 9~35VDC wide voltage
  • 5. Duel LED for 360 visual
  • 6. Flashing LED power indicator



Technical Spcecification


  • Product Category:  4Wires
  • Operating Voltage: DC9V~35V (Orders: DC40~60V)
  • Standby Current:   ≤55uA
  • Alarm Current:   ≤55mA@DC24V
  • Alarm Indication:    Red LED ON
  • Reset:  Power off or Auto Reset            
  • Operating Temperature:  -10℃ to +50℃
  • Operating Humidity:  ≤95 RH
  • Alarm Output: Remot LED
  • Contact Rating: N/A
  • Sensitivity:  0.5dB/m (±0.1dB/m)
  • Standard: EN54-7 UL268


  • 1PC/BOX
  • 100PCS/CTN
  • CTN SIZE: 56X47X35.5cm
  • G.W / N.W: 22.5/21.5kg



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Quality Control


Company Information

Established in 2006,Ningbo Deling Electron Technology Company Limited is a professional manufacturing and trading company in the research, manufacturing, marketing of home alarm system, fire alarm products, DIY alarm products and others.

Researching and Developing is a key important factor for a company to progress. That is why we invest 10% of what we earned every year in R&D Department. Meanwhile, DELING TECHNOLOGY has kept in close cooperation with home and abroad partners, and update latest technology. We stick to the production policy "Quality first to create excellence", have strong production, Process and quality management teams. We are in strict accordance with the ISO9001-2000 quality system requirements, organize production and management, ensure that each manufactured products meet quality standards.



Q: 1. Can I have a sample order?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q: 2. What is the lead time?
A:Sample needs 1-3 days, mass production time needs 10-15 days for order less than 10000 pcs.

Q: 3. Do you have any MOQ limit?
A: Our MOQ EXW is 100 pcs under neutral gift box; MOQ FOB is 1000pcs. MOQ for OEM is 2000PCS.

Q: 4. How do you ship the goods and how long does it take arrive?
A: General we ship samples by DHL, UPS, FedEx or TNT. It usually takes 3-4 days to arrive. for cargos, you can choose sea or airline service by your needs.

Q: 5. How to proceed the order if I have logo to print?
A: Firstly, we will prepare artwork for visual confirmation, if the color and position are alright, we would make sampling by our screen printing machine then take picture for your second confirmation before mass production.

Q: 6. Do you offer guarantee for the products?
A: Yes, we offer one year guarantee for the products.

Q: 7.If products have problem or don’t work,what can we do?
A:First please ready manual,there have many indication on it,if you can not solve the problem after reading.you can send email to QC engineer,our engineer have 10 years experiences to answer your all problem.


Our Services
  1. Professional experience and ability to accept and fulfill ODM/OEM orders.
  2. Answer your enquiries, questions and emails in 6 hours
  3. Direct control on material, testing, quality, lead time ect.
  4. Flexible Payment terms ranged at different quantity
  5. Delivery Time : Sample 3-5 working days ,Large cargo:20 working days
  6. One year warranty life for all detectors sold out from DELING
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