The global fire safety market continues to evolve, driven by stricter building codes, insurance requirements, and growing awareness of fire risks. Selecting the right 4-wire conventional smoke detector is not just about compliance — it is about protecting lives, assets, and business continuity. A substandard detector can fail when it matters most, while a professionally engineered product provides years of dependable service.
Wanlin Fire Control brings extensive expertise to the table. Our 4-wire conventional smoke detector products incorporate the latest advancements in detection technology, from high-sensitivity photoelectric chambers to intelligent signal processing algorithms. We have built our reputation on delivering products that perform consistently in diverse environments — from high-humidity tropical climates to dusty industrial settings.

4-wire conventional smoke detector — Engineered for Reliability by Wanlin Fire Control
| Parameter | Specification |
| Product Name | 4-wire conventional smoke detector |
| Detection Principle | Photoelectric (light scattering) |
| Alarm Sensitivity | 0.10-0.20 dB/m (EN54-7 compliant) |
| Power Supply | 9-28 VDC (non-polarized input) |
| Standby Current | ≤50μA @ 24VDC |
| Alarm Current | ≤20mA @ 24VDC |
| Audible Output | ≥85dB(A) @ 3m |
| Visual Indicator | Dual-color LED (green=normal, red=alarm) |
| Material | Flame-retardant ABS (UL94 V-0) |
| Dimensions | Φ100mm × 45mm (including base) |
Selecting the right partner for your fire safety equipment procurement is as important as choosing the right product. Here is what sets Wanlin Fire Control apart as a 4-wire conventional smoke detector supplier:
✓ Manufacturing Excellence: Our production facility is equipped with automated SMT lines, precision calibration stations, and environmental testing chambers. Every 4-wire conventional smoke detector undergoes automated functional testing before final inspection.
✓ Quality Assurance: ISO9001 certified processes ensure consistent product quality across every batch. We maintain detailed production records and batch traceability for complete quality accountability.
✓ Certification Support: We provide comprehensive certification documentation with every shipment, including CE declarations, EN54 test reports, and ROHS compliance certificates — simplifying your import and regulatory approval process.
✓ Flexible Business Terms: Whether you need a trial order of 50 units or a container load of 5,000, we accommodate your requirements with MOQ flexibility, custom packaging, and tailored shipping solutions.
The 4-wire conventional smoke detector is versatile and suitable for a wide range of environments:
Residential Buildings: Apartments, condominiums, and single-family homes benefit from the reliable detection and low maintenance requirements of our 4-wire conventional smoke detector. The compact design integrates discreetly into living spaces.
Commercial Properties: Offices, retail stores, hotels, and restaurants require fire detection that balances sensitivity with nuisance alarm rejection. Our 4-wire conventional smoke detector delivers both, ensuring occupant safety without business disruption.
Industrial Facilities: Warehouses, factories, and processing plants present unique challenges including dust, temperature extremes, and high ceilings. The robust construction and intelligent algorithms of our 4-wire conventional smoke detector handle these conditions effectively.
Educational & Healthcare: Schools, universities, hospitals, and care facilities have stringent fire safety requirements. Our certified 4-wire conventional smoke detector products meet these standards while offering the reliability needed for 24/7 protection of vulnerable populations.
Q1: What is the expected service life of your 4-wire conventional smoke detector?
Our 4-wire conventional smoke detector has a design service life of 10 years under normal operating conditions. The photoelectric sensing chamber maintains stable sensitivity throughout its service life. We recommend functional testing at least annually and replacement at the end of the 10-year period in accordance with international standards.
Q2: How do you ensure consistent quality across production batches?
Every 4-wire conventional smoke detector undergoes automated calibration and functional testing before leaving our factory. Our ISO9001 quality management system tracks production parameters for each batch. We retain samples from every production run for quality verification and long-term reference.
Q3: What shipping methods do you offer?
We ship internationally via sea freight (FCL/LCL), air freight, and express courier services (DHL, FedEx, UPS, TNT). The optimal shipping method depends on your order volume, urgency, and destination. Our logistics team can advise on the most cost-effective option for your location.
Q4: How can I request a quotation?
Contact us at wanlinfirecontrol@163.com or call +8613261677119 with your requirements including product type, quantity, destination, and any special requirements. Our team will provide a detailed quotation within 24 hours.
Ready to source high-quality 4-wire conventional smoke detector products for your project or distribution business? Wanlin Fire Control is your reliable manufacturing partner. Contact us today to discuss your requirements and receive a competitive quotation.
Email: wanlinfirecontrol@163.com
Phone/WhatsApp: +8613261677119
Website: www.wanlinfire.com
Our team looks forward to serving you and building a successful long-term partnership.