Introduction to the CHQ-WSB2/WL Addressable Wall Sounder Beacon
TheCHQ-WSB2/WLis a compact, loop-powered addressable wall sounder with an integral visual alarm device (VAD) designed for modern fire-detection systems. Combining audible and visual signalling in a single unit, this device meets EN54-23 for wall-mounted VADs and is fully compatible with EN54-3 tones. With selectable tones, adjustable sound output and configurable beacon flash rates, the CHQ-WSB2/WL is built to deliver flexible, standards-compliant alarm signalling for a wide range of commercial and residential installations.
Key features at a glance
- Addressable loop-powered sounder + integral VAD(white LEDs for WL variant)
- Standards compliance:EN54-23 (VAD); compatible with EN54-3 tones; LPCB referenced
- Adjustable acoustic output:90–102 dB(A) at 1 m with 51 selectable tones (300–2850 Hz)
- Beacon:high-intensity LEDs with selectable 0.5 or 1 Hz flash rate (panel dependent)
- Low quiescent and sounding currentsfor loop-friendly installation; IP65 achievable with weatherproof kit
- Compact build:Diameter 112 mm × Height 67 mm; lightweight at 164 g
- Suggested retail price:69.99 (cost price 57.40) — competitive positioning for addressable VADs
Detailed specifications and benefits
Understanding the technical specifications of the CHQ-WSB2/WL helps installers and system designers assess how it will perform in a given environment. Below are the key specification highlights and the practical benefits they deliver.
- Model:CHQ-WSB2 (CHQ-WSB2/WL variant)
- Standards:EN54-23 (wall VAD) compliant; EN54-3 tone compatibility; LPCB referenced by manufacturer
Benefit: EN54-23 compliance ensures the visual alarm performance meets recognised European standards, which is essential for many commercial and public buildings. Compatibility with EN54-3 tones ensures the audible signals meet industry requirements.
- Operating voltage:17 6–41 V DC
- Quiescent current:150 A (standard base) / 200 A (isolator base)
- Sounding current:approx. 2 mA (90 dB) up to approx. 8 mA (102 dB); +7 mA when beacon active
Benefit: The low quiescent and sounding currents make the CHQ-WSB2/WL loop-friendly, allowing multiple devices to be powered from a single addressable loop without undue drain. The wide operating voltage range improves compatibility with a variety of control panels and loop designs.
- Sound output:90 6102 dB(A) at 1 m ( )
- Number of tones:51 selectable tones
- Tone frequency range:300 62850 Hz
Benefit: A broad selection of tones and an adjustable sound level enable tailoring the alarm to the environment and to meet local regulations or client preferences. The maximum of 102 dB(A) suits noisy areas, while lower settings preserve comfort in quieter spaces.
- Beacon type:High-intensity LEDs (white for WL variant)
- Flash frequency:Selectable 0.5 or 1 Hz (panel dependent)
- EN54-23 rating:Approved (O rating for this variant)
Benefit: High-intensity LEDs provide strong visual signalling for hearing-impaired occupants and in noisy environments where audible alarms might be missed. Selectable flash rates support compatibility with different panel behaviours and local codes.
- Operating temperature:610 C to +50 C
- Storage temperature:30 C to +70 C
- Humidity:Max 95% RH non-condensing at 40 C
- IP rating:IP21 internal; IP65 when fitted with CHQ-WPK weatherproof kit
- Dimensions:Diameter 112 mm Height 67 mm
- Weight:164 g
- Fixing centres:48 674 mm
Benefit: The small footprint and light weight simplify installation on diverse wall types. Weatherproofing availability extends the units usefulness to semi-exposed locations when fitted with the optional CHQ-WPK kit.
Use cases and ideal scenarios
The CHQ-WSB2/WL is designed for environments where both audible and visual signals are required, and where addressable control offers installation and maintenance efficiencies. Typical use cases include:
- Commercial offices and retail spaces:Providing clear, standards-compliant signalling in public areas where visual alerts support occupants with hearing impairments.
- Residential complexes and multi-occupancy buildings:Wall-mounted VADs increase visibility in corridors and stairwells while addressable capability allows zonal identification at the control panel.
- Educational establishments:Classrooms, corridors and auditoriums benefit from combined audible/visual alarms with selectable tones to reduce panic and ensure recognition.
- Industrial and noisy environments:With up to 102 dB(A) output and a bright beacon, the CHQ-WSB2/WL remains effective where ambient noise could mask alarms.
- External and semi-exposed locations:When used with the CHQ-WPK weatherproof kit, it becomes suitable for sheltered external areas like covered walkways.
How it compares with similar products
Addressable sounder-beacons are available from multiple manufacturers. What sets the CHQ-WSB2/WL apart are a few notable points:
- Standards focus:EN54-23 approval for wall VADs is a key differentiator; not all sounder-beacon combinations carry this specific VAD approval.
- Low loop current:Its low quiescent and sounding currents allow more devices per loop compared with some older or less efficient models.
- Tone flexibility:51 selectable tones and a wide frequency range make it more adaptable than units with a handful of fixed tones.
- Beacon configuration:Selectable flash rates and high-intensity LEDs provide flexibility often required for compliance across different territories and client requirements.
- Compact and lightweight:Easier to install in constrained locations than some bulkier alternatives.
When comparing brands, consider both the approval status (EN54 series), loop current draw and compatibility with the chosen control panel. In many projects, CHQ-WSB2/WL will be chosen specifically for its EN54-23 rating, combined VAD/audible capability, and loop-friendly electrical profile.
Installer notes and practical considerations
Installation should be performed by qualified personnel in accordance with local regulations (for example, the UK BS 5839 series where applicable). Key installation points include base selection (e.g., Hochiki YBO-R/3 or YBO-R/SCI), addressing via the loop, and verifying control-panel compatibility for features such as auto-shutdown or independent sound/beacon control. Where external mounting is required, the CHQ-WPK weatherproof kit should be used to attain IP65 protection.
Customer feedback and testimonials
There are no official customer testimonials included with the product data provided here. However, feedback commonly reported by installers and system designers for addressable wall sounder-beacons with similar specifications includes appreciation for:
- Easy installation and compact size that suits retrofit projects.
- Low current draw allowing denser loop population without overloading the loop supply.
- Reliable visual signalling that meets EN54 VAD criteria, making regulatory sign-off smoother.
For validated customer reviews, consult reseller listings or request references from the supplier to see real-world installation feedback specific to the CHQ-WSB2/WL.
Conclusion: Why choose the CHQ-WSB2/WL?
The CHQ-WSB2/WL addresses the needs of modern fire alarm systems by combining EN54-23-approved visual signalling with an addressable, loop-powered audible output. Its strengths are clear: standards compliance, a wide selection of tones, selectable beacon behaviour, low loop currents and compact mechanical design. These attributes make it particularly well suited for commercial, residential and educational installations where both visual and audible alarms are required and where installers demand loop efficiency and regulatory compliance. With a competitive suggested price and optional weatherproofing for external use, the CHQ-WSB2/WL represents a practical, standards-aligned choice for fire alarm designers and installers seeking a versatile wall-mounted sounder/beacon solution.
Always review the official datasheet and your control panel documentation before specifying or installing this device. Confirm panel compatibility for tone selection, beacon control and any auto-shutdown features to ensure the device behaves as required in your system design.
