Silent Knight SK-PTIR-W Multi-Criteria Detector, White

The SK-PTIR-W Intelligent Addressable Multi-Criteria Fire Detector is an advanced fire detection device designed to improve alarm accuracy by combining photoelectric smoke sensing, thermal detection, and infrared sensing technology in one compact unit. This multi-sensor approach helps identify genuine fire conditions while reducing unwanted alarms caused by environmental disturbances and nuisance particulates.

Designed for commercial, institutional, and professional fire alarm installations, the SK-PTIR-W uses sophisticated detection algorithms to analyze information from multiple sensing technologies. By evaluating smoke particles, temperature changes, and infrared light patterns together, the detector provides comprehensive fire monitoring.

The integrated photoelectric sensor detects airborne particles associated with smoke, while the thermal sensing element monitors temperature and rate-of-rise conditions. The detector incorporates a fixed-temperature heat alarm threshold of 135°F (57°C), providing additional thermal detection capability.

Infrared sensing technology evaluates environmental light patterns to help distinguish potential fire conditions from nuisance sources. This combination can improve resistance to false alarms caused by environmental conditions such as theatrical smoke, making the detector suitable for appropriately designed installations where nuisance particulates may be present.

The SK-PTIR-W supports distinct smoke and heat alarm indications, allowing compatible fire alarm control panels to apply different response strategies. For example, appropriately configured systems may use localized alarm responses for smoke detection and broader evacuation procedures for thermal alarms.

Featuring intelligent analog communications, rotary address switches, and dual status LEDs with 360-degree visibility, the SK-PTIR-W provides dependable system integration and convenient maintenance.

Its modern, low-profile white housing is designed for ceiling-mounted applications and offers an attractive appearance for contemporary building interiors.

The SK-PTIR-W is identified as a replacement for the SK-ACCLIMATE detector and is listed to UL 268 7th Edition and UL 521 requirements according to the supplied product information.

10 Key Features

1. Multi-Criteria Fire Detection: Combines photoelectric, thermal, and infrared sensing technologies for comprehensive fire monitoring.

2. Photoelectric Smoke Sensing: Detects airborne particles associated with smoke and combustion.

3. Thermal Detection: Monitors heat and rate-of-rise conditions to identify developing fire events.

4. 135°F Fixed Heat Threshold: Incorporates a fixed-temperature alarm threshold of approximately 57°C.

5. Infrared Sensing Technology: Analyzes environmental light patterns to support fire detection decisions.

6. Enhanced Nuisance Alarm Immunity: Uses multi-sensor algorithms to help reduce unwanted alarms from non-fire environmental conditions.

7. Separate Smoke and Heat Indications: Supports distinct alarm reporting for photoelectric and thermal detection events.

8. Rotary Address Switches: Simplifies device addressing during installation and system configuration.

9. Dual 360-Degree Visible LEDs: Provides status indication from multiple viewing angles.

10. Modern Low-Profile Housing: Features a white enclosure designed for professional ceiling-mounted fire alarm installations.