Silent Knight IDP-PHOTO-T Smoke and Heat Detector

The Silent Knight IDP-PHOTO-T is a commercial fire alarm smoke and heat detector designed for compatible Silent Knight fire alarm systems. Specifically, it combines optical smoke detection with a fixed 135°F (57°C) thermal sensor to provide dependable life-safety protection in commercial buildings. This product is intended exclusively for commercial fire alarm installations and is not surveillance equipment, communications equipment, consumer electronics, tracking equipment, or recording devices.

Built for long-term reliability, the IDP-PHOTO-T features advanced smoke sensing, integrated thermal detection, automatic sensitivity monitoring, and a compact low-profile design. In addition, its durable housing supports dependable operation in a wide variety of commercial environments.

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Product Functions

The Silent Knight IDP-PHOTO-T supports commercial fire alarm systems by providing:

• Optical smoke detection
• Fixed 135°F (57°C) thermal detection
• Continuous detector sensitivity monitoring
• LED status indication
• Rotary address switch configuration
• Reliable operation with compatible fire alarm control equipment
• Support for routine testing and maintenance

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Electrical & System Information

The IDP-PHOTO-T operates with compatible Silent Knight intelligent fire alarm control panels using the manufacturer’s specified operating voltage and system requirements. Furthermore, it continuously reports detector status while supporting dependable fire detection within approved commercial fire alarm systems.

Always verify compatibility with the intended control panel before installation.

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Features

Dual Detection Technology

The detector combines optical smoke sensing with a fixed-temperature 135°F (57°C) thermal sensor. As a result, it provides dependable fire detection across a wide range of commercial applications. The thermal sensor supplements smoke detection and is not intended to replace a dedicated heat detector where one is required.

Automatic Sensitivity Monitoring

The detector continuously monitors its sensitivity during normal operation. Consequently, the fire alarm control panel can identify maintenance needs before performance is affected.

LED Status Indicator

Integrated LEDs provide clear visual indication of detector status. Therefore, technicians can quickly identify detector operation during inspections and testing.

Rotary Address Switches

Rotary switches simplify device configuration and allow efficient installation within compatible fire alarm systems.

Reliable Commercial Performance

Designed specifically for commercial life-safety applications, the detector delivers dependable performance while supporting routine inspection and maintenance.

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Mounting & Design

The Silent Knight IDP-PHOTO-T features a compact, low-profile housing that complements commercial interiors while providing reliable operation. Furthermore, its durable polymer construction offers excellent resistance to normal commercial environments.

The detector installs on compatible mounting bases and supports a variety of approved installation configurations.

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Protection & Applications

The IDP-PHOTO-T is designed exclusively for commercial fire alarm systems requiring both smoke detection and supplemental fixed-temperature thermal sensing.

Typical protection includes:

• Smoke detection
• Supplemental thermal detection
• Commercial fire alarm systems
• Life-safety protection
• Building fire detection

Always install the detector according to local building codes, fire codes, and the manufacturer’s installation instructions.

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Compatibility

The Silent Knight IDP-PHOTO-T is designed for use with compatible Silent Knight intelligent fire alarm control panels and approved detector bases.

Before purchasing or installing this detector, verify compatibility with the intended fire alarm system and all applicable project requirements.

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Technical Specifications

Manufacturer: Silent Knight

Model: IDP-PHOTO-T

Product Type: Commercial Fire Alarm Smoke Detector with Fixed Thermal Sensor

Detection Technology: Optical Smoke Detection with 135°F (57°C) Fixed Thermal Sensor

Operating Voltage: 15–32 VDC

Standby Current: 250–300 µA @ 24 VDC

Maximum Alarm Current: 6.5 mA @ 24 VDC

Thermal Set Point: 135°F (57°C)

Addressing Method: Rotary Address Switches

Status Indicator: LED

Operating Temperature: 32°F to 100°F (0°C to 38°C)

Relative Humidity: 10%–93% Non-Condensing

Air Velocity: 0–4000 fpm (0–20 m/s)

Housing: Durable Commercial Polymer

Mounting: Compatible Silent Knight Detector Bases

Height: 2.0 in (5.0 cm)

Diameter: 4.1 in (10.4 cm)

Weight: 5.2 oz (147 g)

Listings: UL Listed (verify specific approvals for your application)

Always verify technical specifications using the manufacturer’s official documentation before installation.

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Applications

The Silent Knight IDP-PHOTO-T is commonly installed in compatible commercial fire alarm systems serving:

• Office Buildings
• Schools
• Universities
• Hospitals
• Healthcare Facilities
• Hotels
• Government Buildings
• Retail Stores
• Warehouses
• Industrial Facilities
• Commercial Buildings

Before installation, verify compliance with local codes, project specifications, and manufacturer recommendations to ensure proper system operation.

IDP-PHOTO-T