The Johnson Controls 2951J is an intelligent, plug-in photoelectric smoke detector with integral communication that connects directly to compatible Johnson Controls fire alarm control panels. The 2951J uses a unique optical sensing chamber engineered to detect smoke from a wide range of combustion sources. Detector sensitivity is programmable in the control panel software, eliminating manual sensitivity adjustments. The panel continuously monitors each 2951J detector’s sensitivity and generates a trouble condition when chamber contamination reaches an unacceptable threshold, providing selective maintenance direction to the exact detector location that requires service.
Point ID capability allows each 2951J detector’s address to be set with decade address switches, providing a unique, exact address on the signaling line circuit. This reconditioned 2951J detector ships with a one-year warranty and has been restored to proper working condition prior to sale.
Key Features
- Intelligent plug-in photoelectric detection with integral communication
- Decade address switches — unique point ID for each detector on the SLC
- Programmable sensitivity levels via control panel software
- Continuous sensitivity monitoring — panel-reported trouble when contamination threshold exceeded
- Selective maintenance identification — exact detector location reported for service
- Optical sensing chamber for broad combustion source detection
- Reconditioned with 1-year warranty
Compatible Panels
The 2951J is compatible with Johnson Controls intelligent addressable fire alarm control panels. Specific compatible panel model numbers should be verified with Johnson Controls documentation or contact Life Safety Consultants for assistance.
Life Safety Consultants has supplied reconditioned Johnson Controls and Simplex fire alarm detectors since 2002. For questions about the 2951J, call 1-888-557-0558 or email sales@lifesafetycom.com.
Additional information
| Weight | .25 lbs |
|---|---|
| Dimensions | 4 × 4 × 2 in |
| Condition | Reconditioned |
| Part Type | Photoelectric, Smoke Detector |
| Compatible Panels | Simplex and Johnson Controls (JCI) fire alarm systems |
| Detection Type | Photoelectric, Condition: Reconditioned, Brand: Johnson Controls / Simplex, Form Factor: Spot-type |








