Notifier Wall Mounted Red Loop Sounder (Requires B501AP Base)

The Notifier Wall Mounted Red Loop Sounder (requires B501AP base) is a high-quality, loop-powered device designed to quickly alert building occupants during an emergency. It offers fast, straightforward installation with a simple twist-fit onto the B501AP base and is powered directly from the fire panel via the loop wiring. The unit can be controlled through on-board switches or via the Opal digital protocol from the control panel.

Installation efficiency is enhanced by features such as large cable access, flexible cable entry options, and a loop-continuity spring, helping reduce setup time and cost. Clear addressing, built-in isolation, and an anti-tamper mechanism support reliable operation and easy fault-finding. With high output performance and 32 synchronisable tones, the sounder provides strong, clear fire warning capability. Its low current draw and compatibility with the wider Opal AV range also offer excellent flexibility for system designers.

• Faster installation – Large cable access, multiple entry options, and the loop-continuity spring speed up installation and reduce cost.

• Fewer errors & easier fault-finding – Push-and-turn mounting, clear address tags, built-in isolation, rotary addressing, and anti-tamper features simplify setup and troubleshooting.

• High performance – Powerful light output and 32 synchronisable sounder tones provide clear, rapid fire warnings.

• Flexible installation – Low current draw, wide device range, multiple mounting and colour options, and adjustable sounder volume offer strong system design flexibility.

• Lower lifetime costs – Durable, UV-stable materials ensure long service life, and the universal base allows adding sounders/beacons without rewiring.

• Reduced inventory – Uses the common B501AP base and supports both Opal and legacy protocols; available in multiple mounting types, device combinations, and red/white colour options.

• Colour: Red