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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

NINGBO TOLION SECURITY TECHNOLOGY CO.,LTD began as theR&D and manufacturer of alarm accessories products since 2002. Our company is a professional manufacturing and trading company in research, manufacturing, marketing of smoke /heat/gas detector, home alarm systems, fire alarm products, ODM/OEM alarm products and others.

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


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:
5 Transactions 40,000+
The supplier’s transactions conduted 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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