Johnson Controls 2951J Fire Alarm Smoke Detector Head + Base
Johnson Controls 2951J Fire Alarm Smoke Detector Head + Base
Condition: Used
365 in stock
Storewide Quantity discount: Save 5% on 2 items, 8% on 3 items, and 10% on 4+ items (applies automatically at checkout).
Couldn't load pickup availability
You will be prompted to create an account or sign in to complete your purchase.
As an eBay Partner, we may be compensated if you make a purchase.
Johnson Controls 2951J Fire Alarm Smoke Detector Head and Base
This reliable smoke detection assembly provides rapid response to combustion products for enhanced facility safety. It features a streamlined design for seamless integration into existing life-safety systems. - Advanced photoelectric sensing technology - Compatible with intelligent fire alarm control panels - Integrated twist-lock mounting base - Low-profile aesthetic for unobtrusive installation - Built-in status indicator LED
Compared to previous generations of analog detectors, this model offers superior signal processing and improved false alarm rejection. It serves as a modern, high-performance upgrade for legacy systems, ensuring consistent reliability in demanding commercial and industrial environments.
Key Technical Advantages: Technology and Performance
The 2951J utilizes sophisticated thermal and optical algorithms to differentiate between actual smoke hazards and common environmental nuisances. Its robust communicative architecture allows for precise addressability, enabling facility managers to pinpoint the exact location of a detected event within seconds. This high level of precision significantly reduces emergency response times and enhances overall building security, meeting the rigorous standards required for professional-grade fire management infrastructure.
This item description was generated using artificial intelligence and may contain errors. Specifications and compatibility should always be verified using official manufacturer documentation and, where applicable, by a qualified or licensed fire alarm technician.
View full details

About us
We specialize in new, used, and surplus fire alarm and life-safety equipment. Our inventory includes control panels, modules, power supplies, annunciators, detectors, and related accessories from leading manufacturers. Listings reflect current, in-stock availability and are updated regularly. Orders ship quickly and are packed with care.
For additional details, please review our Terms of Service, Shipping Policy and Refund Policy before placing your order. Please contact us with any questions.