Silent Knight Intelligent Photoelectric Smoke Sensor with Remote Test Capability SK-PHOTO-R-W, White
Smoke sensing, tested from the panel.
An addressable photoelectric smoke sensor for Silent Knight fire alarm panels. It connects on a two-wire SLC and can be tested remotely from the panel, so checks don't start with a ladder.

Testing every detector one by one takes time.
Fire alarm systems depend on detectors that can be checked reliably. A sensor that supports testing from the panel makes that routine job simpler.
Built for addressable fire systems
The SK-PHOTO-R-W pairs photoelectric sensing with installer-friendly details.
Remote test feature
Test the sensor from the panel, with a built-in functional test switch activated by an external magnet for checks at the device.

LED viewing angle
The dual LED design is visible from all sides.
Dual LED, 360° view
The dual LED design provides a 360° viewing angle, so status can be seen from around the device.
Two-wire SLC connection
It uses a two-wire SLC connection with a stable communication technique that has noise immunity and low standby current.
Tamper-resistant and sealed
A built-in tamper-resistant feature and a design sealed against back pressure are part of the sensor.
Everything you need to know.
| Brand | Silent Knight |
| Model | SK-PHOTO-R-W |
| Sensing technology | Photoelectric |
| Addressable | Yes |
| Connection | Two-wire SLC |
| Input voltage | 32V DC |
| Operating temperature | 0-50 deg C (32-122°F) |
| Operating humidity | 10-93% |
| Form factor | Ceiling mount |
| Size | 6.1" diameter, 2" height |
| Weight (approximate) | 5.2 oz |
| Certification | UL listed |
Silent Knight Intelligent Photoelectric Smoke Sensor with Remote Test Capability SK-PHO...
The Silent Knight SK-PHOTO-R-W is a Intelligent Photoelectric Smoke Sensor with Remote Test Capability (White). It is made for fire alarm, security and facility professionals who need dependable smoke detector equipment.
Key Features
- New modern profile for improved aesthetics
- Stable communication technique with noise i mmunity
- Low standby current
- Two-wire SLC connection
- Optional remote, single- gang LED accessory
- Dual LED design provides 360° viewing angle
- Remote test feature from the panel
- Built-in functional test switch activated by external magnet
- Built-in tamperresistant feature
- Sealed against back pressure
Specifications
- Brand: Silent Knight
- Model: SK-PHOTO-R-W
- Product Model: SK-PHOTO-R-W
- Product Series: SK-PHOTO-W
- Product Type: Smoke Detector
- Addressable: Yes
- Connectivity Technology: Wired
- Detectable Medium: Fire
- Maximum Air Velocity: 1219.2 m/s
- Sensing Technology: Photoelectric
- Commercial/Residential: Residential
- Status Indicators: Alarm, LED
- Operating Relative Humidity (H-H): 10-93%
- Operating Temperature (T-T): 0-50 deg C
- Color: White
- Form Factor: Ceiling Mount
- Height: 2"
- Weight (Approximate): 5.2 oz
- Input Voltage: 32V DC
- Input Voltage (V DC): 32
- Power Source: AC Power
- Diameter: 6.1"
- Operating Temperature (T-T) (°F): 32-122
- Certifications & Standards: UL listed
- Compatibility: 6820: Addressable fire alarm control panel, Honeywell Silent Knight fire alarm control panels:, 5700: Addressable fire alarm control panel, 5808: Addressable fire alarm control panel, 5820XL: Addressable fire alarm control panel, 5820XL-EVS: Addressable fire alarm control panel with an emergency voice system, 6700: Addressable fire alarm control panel, 6808: Addressable fire alarm control panel, 6820EVS: Addressable fire alarm control panel with an emergency voice system.
- UL Listed: Yes
- Shipping weight: 0.3 lb
Typical Uses
- Fire detection in commercial buildings
- Addressable fire alarm systems
Please confirm that the SK-PHOTO-R-W matches your system, panel, mounting and finish requirements before ordering. Contact us with the model of your existing equipment if you need help checking compatibility.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Silent Knight SK-PHOTO-R-W, ready to order.
- Sensing technology: Photoelectric
- Addressable: Yes
- Connection: Two-wire SLC
- Input voltage: 32V DC
Related equipment
You may also like
Silent Knight Sampling Tube for 2.5' Duct STS-2.5, Pack of 5
Model: STS-2.5
Silent Knight Intelligent Photoelectric Smoke Detector and Temperature Sensor SK-PHOTO-T-W
Model: SK-PHOTO-T-W
Silent Knight Multi-Criteria Detector SK-PTIR-W, White
Model: Multi-Criteria
Silent Knight Intelligent Photoelectric Duct Smoke Detector SK-DUCT-W, Smoke Detector Housing and SK-PHOTO-R-W Detector
Model: SK-DUCT-W
Silent Knight Addressable Combination Fire/CO Detector SK-FIRE-CO-W, White
Model: Fire/CO
Silent Knight Addressable 2-Wire Fixed Heat Detector SK-HEAT-W, Includes Base, White
Model: 2-Wire
Silent Knight Addressable High Heat Detector SK-HEAT-HT-W, White, Base Included
Model: SK-HEAT-HT-W
Silent Knight Addressable Heat Rate of Rise Detector SK-HEAT-ROR-W, White
Model: SK-HEAT-ROR-W
