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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: TOLION
  • Model Number: SD-604-4
  • Style: 4 Wire Factory wholesale Smoke Alarm Smoke Detector
  • Certificate: CE / RoHS
  • Standard: EN54-7 UL268
  • Size: Dia 103 x 48mm
  • Feature: 2 wire conventional
  • Packing: Color Box
  • Sensitivity: 0.5dB/m ( 0.1dB/m)
  • Operating voltage: DC9V-35V
  • Usage: Fire Alarm
  • Material: Hard Plastics

Packaging & Delivery

Packaging Details Color Box or As customer's request
CTN SIZE: 56X47X35.5cm
G.W / N.W: 22.5/21.5kg
Delivery 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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Company Information

Established in 2006,NingBo Tolion Technology 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, TOLION 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.


 Exhibition and Workshop:


Our Services
  1. Before we deliver goods ,we will test each one by manual 
  2. Quality Warranty:2 years, Any question about the product ,plaese contact with us
  3. Delivery Time : Sample 3-5 working days ,Large cargo:35 working days
  4. OEM can be provide
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Transaction History of the Supplier

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Transaction Overview


Transaction Details

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China (Mainland) | Manufacturer, Trading Company
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Supplier Assessments:
1 Transactions 7,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $53,000
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