SMS SenTRI1 1 Loop Addressable Fire Alarm Panel
£493.63 (inc VAT: £592.36)
Summary
The SenTRI ONE Control Panel represents cutting-edge analogue addressable fire detection technology specifically designed for small to medium-sized buildings. Manufactured by SMS, part of Honeywell Life Safety Systems, this single-loop panel combines intuitive operation with reliable performance to deliver an exceptional fire safety solution.
Engineered with ease of use as the highest priority, the SenTRI ONE features an attractive modern design that complements any building aesthetic whilst providing comprehensive fire detection capabilities. The panel manages up to 127 devices on a single loop circuit, making it ideal for applications where simplicity and reliability are paramount.
With full EN54 Parts 2 and 4 certification and LPCB approval, the SenTRI ONE ensures compliance with British Standards BS5839-1:2013 and Building Regulations Approved Document B&M. The system incorporates advanced sensing technology to minimise false alarms whilst maintaining rapid response to genuine fire conditions.
Features
- Analogue addressable technology for precise device identification
- 32 zonal LED display for clear status indication
- 8 x 40 character backlit LCD display
- Weekly test reminder system with sequential manual call point testing
- Automatic maintenance reminder scheduling
- Simple fire plan configuration for smaller premises
- PC commissioning tool for easy setup and programming
- USB port and SD card support for configuration upload
- Built-in loop isolators in every device
- Two master alarm circuits with 24V nominal operation
- Fire and fault relay outputs for ancillary equipment control
- RS485 port supporting up to four repeat indicator panels
- Compatible with full range of SenTRI loop devices
- Advanced sensing technology minimising false alarms
- Surface or semi-flush mounting options
- Integral standby battery provision
FAQs
What is the maximum number of devices that can be connected to the SenTRI ONE?
The SenTRI ONE can manage up to 127 addressable devices on a single loop circuit, including sensors, sounders, manual call points, and interface units.
What loop length does the SenTRI ONE support?
The system supports loop lengths up to 1km, with a maximum cable length of 250m between individual loop devices to maintain signal integrity.
Is the SenTRI ONE networkable with other panels?
No, the SenTRI ONE is a standalone single-loop panel that is not networkable. For networked systems, consider the SenTRI TWO or SenTRI FOUR panels.
What certifications does the SenTRI ONE hold?
The panel is certified to EN54 Parts 2 and 4 standards and holds LPCB (Loss Prevention Certification Board) approval, ensuring compliance with British fire safety regulations.
Can the SenTRI ONE be programmed remotely?
Yes, the panel can be programmed using the dedicated PC commissioning tool, with configurations uploaded via USB port or SD card for convenient setup and maintenance.
What happens if there’s a fault on the loop circuit?
Every SenTRI device includes a built-in loop isolator as standard, allowing the system to isolate faults automatically and maintain operation of unaffected devices on the loop.
Does the SenTRI ONE support repeat indicator panels?
Yes, up to four repeat indicator panels can be connected directly to the fire panel via the RS485 port, providing remote indication and control capabilities.
Specifications
- Panel Type: Single loop analogue addressable
- Maximum Devices: 127 per loop
- Loop Length: Up to 1km
- Maximum Cable Length Between Devices: 250m
- Certification: EN54 Parts 2 and 4, LPCB approved
- Display: 8 x 40 character backlit LCD
- Zone Indication: 32 zonal LEDs
- Operating Temperature: 0°C to +45°C
- Ingress Protection: IP31
- Dimensions (H x W x D): 419mm x 347mm x 85.5mm
- Weight: 9kg (including batteries)
- Master Alarm Circuits: 2 circuits at 24V nominal
- Master Alarm Circuit Current: 200mA maximum per circuit
- Relay Outputs: Fire relay and fault relay (voltage-free contacts)
- Communication Port: RS485 for repeat panels
- Programming Interface: USB port and SD card slot
- Repeat Indicator Panels: Up to 4 supported
- Networkable: No
- Standards Compliance: BS5839-1:2013, Building Regulations Approved Document B&M
- Mounting: Surface or semi-flush
- Power Supply: 230V AC with integral battery backup
- Battery Type: Sealed lead acid (not included)
- Fuse Protection: Ceramic type, FS2 250mA AS, FS3 250mA AS
Downloads
- Brochure (Adobe PDF)
Additional information
| Weight | 9.00 kg |
|---|---|
| System Type | |
| Device Type | |
| Protocol | |
| Max Loops | |
| Touchscreen |

