Silent Knight WSK-PHOTO-T Wireless Smoke Heat Detector

The Silent Knight WSK-PHOTO-T Wireless Smoke and Heat Detector provides intelligent fire detection for compatible SWIFT wireless fire alarm systems. It combines photoelectric smoke sensing with a 135°F fixed-temperature heat sensor. In addition, its wireless design reduces the need for traditional detector wiring in challenging installation environments.

Intelligent Wireless Smoke Detection

The Silent Knight WSK-PHOTO-T uses photoelectric sensing technology to monitor smoke particles in the protected area. Its sensing chamber evaluates smoke conditions and sends information through the SWIFT wireless network.

The wireless gateway communicates with a compatible fire alarm control panel. Therefore, the system can identify individual detectors and monitor their operating conditions.

This intelligent communication also helps technicians locate devices that require inspection or maintenance.

Integrated 135°F Heat Detection

The detector includes a fixed-temperature thermal sensor rated at 135°F (57°C).

This sensor monitors temperature independently of the photoelectric chamber. As a result, the device provides both smoke and heat detection capabilities in one assembly.

The combined sensing arrangement offers flexibility for approved commercial fire alarm applications.

SWIFT Wireless Mesh Technology

The detector belongs to Honeywell’s Smart Wireless Integrated Fire Technology family.

SWIFT devices communicate through a Class A wireless mesh network. Each device can establish communication paths through other compatible wireless devices.

Consequently, the network provides alternate communication routes when conditions affect an existing wireless path.

The system also uses frequency hopping and bidirectional communication to support dependable wireless operation.

Key Features

• Intelligent wireless smoke and heat detector
• Silent Knight SWIFT wireless technology
• Photoelectric smoke sensing
• 135°F fixed-temperature heat detection
• Class A wireless mesh communication
• Bidirectional wireless signaling
• Frequency-hopping technology
• Addressable code-wheel configuration
• Dual multicolor status LEDs
• Compatible WSK-WGI wireless gateway
• B501W mounting base included
• Four CR123A lithium batteries
• Battery-powered detector operation
• Low-battery supervision
• Wireless site survey support
• SWIFT Tools configuration compatibility
• Suitable for compatible commercial fire alarm systems
• UL 268 Listed
• FM Approved

Wireless Gateway Compatibility

The Silent Knight WSK-PHOTO-T communicates through a compatible WSK-WGI wireless gateway.

The gateway connects the wireless mesh network to the signaling line circuit of a supported fire alarm control panel.

Therefore, wireless detectors can operate alongside compatible wired addressable devices.

A single SWIFT gateway supports up to 49 compatible wireless devices under the manufacturer’s specified configuration.

Battery-Powered Operation

The detector uses four CR123A lithium batteries.

The manufacturer specifies an approximate battery service life of two years under defined operating conditions. However, actual service life depends on environmental conditions and network activity.

The fire alarm system supervises battery status. As a result, technicians can identify devices that require battery replacement.

Always replace batteries according to the manufacturer’s instructions.

Addressing and Status Indication

The detector includes addressable code wheels for device identification.

In addition, two multicolor LEDs provide local operating information. Compatible control panels can control red, green, and amber indications.

These indicators help technicians recognize operating, alarm, and trouble conditions during service.

Typical Fire Alarm Applications

This wireless smoke and heat detector supports commercial and institutional fire alarm installations.

For example, suitable applications may include offices, schools, hotels, healthcare facilities, warehouses, and historic buildings.

Wireless detection can be particularly useful where installing conduit or pulling new cables would be difficult.

Furthermore, the technology can reduce installation disruption in finished or occupied spaces.

Installation and Compatibility

Before installation, verify the fire alarm control panel, wireless gateway, detector address, and approved system configuration.

Also, perform the required wireless site survey and confirm signal communication throughout the protected area.

Qualified fire alarm professionals should install, configure, and test the detector. In addition, technicians should follow Silent Knight instructions and applicable fire alarm codes.

Overall, this Silent Knight wireless photoelectric and thermal detector provides flexible fire detection for compatible SWIFT systems. Its combined sensing technology, 135°F heat rating, wireless mesh communication, and battery-powered design make it useful for professional fire alarm installations.

WSK-PHOTO-T Datasheet