Introduction to the Texecom Odyssey X Back-Plate (WDD-0002) and its key features
Texecom Odyssey X Back-Plate, 115 dB (WDD-0002)is a wired external alarm sounder back-plate designed for professional intruder alarm installations. Built to meet EN50131-4 / Grade 3 expectations, this modular unit provides a high acoustic output, robust tamper monitoring and a range of installer-friendly features such as patented engineer Hold-Off mode and alternating white comfort LEDs for visual status and deterrence. The WDD-0002 back-plate is intended to be paired with Odyssey X covers and backlights to meet site-specific weatherproofing and aesthetic needs.
- Wired twin piezo sounder delivering 115 dB(A) peak at 1 m (non-E variants).
- Grade 3 design and tamper monitoring for wall and cover.
- Patented engineer Hold-Off mode to allow safe servicing without repeated full alarms.
- Alternating white LEDs for visual deterrence and status indication.
- Modular system that supports multiple covers/backlights and custom graphic inserts.
Detailed description of specifications and benefits
The WDD-0002 back-plate packs practical technical features into a modular form factor that suits many external alarm applications. Below are the core technical specifications followed by explanations of the benefits these specifications bring to a real-world installation.
- Part code:WDD-0002 (Odyssey X series)
- Supply voltage:12–16 V DC (nominal 13.7 V)
- Acoustic output:115 dB(A) peak at 1 m (non-E WDD models)
- Quiescent current:~18 mA (typical)
- Strobe current:100 mA (strobe)
- Total alarm current:Model dependent; refer to the installation manual for model-specific sounder currents
- Internal battery:NiMH 7.2 V nominal, ~250 mAh (supports supervised battery monitoring)
- Operating temperature:−25 °C to +55 °C
- IP rating:Varies by variant (example: non-E models IP65; E models example IP44) — check the specific cover/backlight for site requirements
- Materials:3 mm polycarbonate covers with galvanised steel plate options
- Compliance:Designed for EN50131-4 / Grade 3 Class IV
Benefits explained:
- High acoustic output (115 dB):The twin piezo sounder provides a loud, attention-grabbing alarm signal. At 115 dB(A) peak at 1 m this unit is suitable for commercial and higher-risk residential sites where a strong audible deterrent is required.
- Grade 3 readiness:Designed to comply with EN50131-4 Class IV criteria, the WDD-0002 meets the higher security expectations of many commercial installations and insurance requirements. Grade 3 devices are typically specified where intruder threat is considered serious.
- Tamper and battery supervision:Wall and cover tamper monitoring helps detect attempts to disable or remove the device, while battery monitoring ensures the backup power source is supervised and faults are reported to the control panel.
- Patented engineer Hold-Off mode:This feature reduces nuisance full alarms during maintenance by allowing engineers to temporarily hold the sounder off while performing work, improving safety and reducing false alarm responses during service visits.
- Modularity and visual status:The Odyssey X platform lets installers choose covers, backlights and graphic inserts to achieve the required IP rating and visual style. Alternating white LEDs provide visible deterrence and quick visual status without being overly obtrusive to neighbours.
- Installer-friendly power profile:With modest quiescent current and clearly documented alarm currents, the back-plate integrates cleanly into typical alarm power budgets. The onboard NiMH battery provides short-term supervision for trouble conditions when mains is lost.
Installation and compliance notes:Always follow the Odyssey Series installation manual (FCC-0843) and applicable local regulations. Verify the exact model variant (E vs non-E) and the cover/backlight selection to ensure the required IP rating and acoustic output for the intended site. Correct wiring, earth bonding and enclosure sealing are essential for long-term reliability.
Use cases and scenarios where the product excels
The Odyssey X back-plate is best suited to external wired intruder alarm installations where robustness, compliance and modular flexibility are priorities. Typical use cases include:
- Commercial premises:Retail stores, offices and small warehouses often require a visible and audible deterrent mounted externally. The Grade 3 readiness and 115 dB output make the WDD-0002 a strong choice for premises with higher exposure to attempted intrusion.
- High-risk residential properties:High-value homes or properties with higher perceived risk can benefit from the audible and visual deterrent this sounder provides. The modular covers allow an installer to choose a discreet or prominent appearance depending on the client’s preferences.
- Industrial and utility sites:Locations with outdoor infrastructure that must remain protected 24/7 benefit from the wide operating temperature range and tamper monitoring offered by this unit.
- Sites requiring professional servicing:Installations that receive frequent servicing or maintenance can use the Hold-Off mode to reduce nuisance alarm escalation during routine work.
- Multi-site or branded deployments:The ability to add weatherproof graphic inserts and different cover options makes it useful for multi-site rollouts where consistent branding and finish are required while meeting varying environmental ratings.
Comparisons with similar products on the market
When evaluating external alarm sounders, installers typically compare wired versus wireless options, piezo versus electronic sounders, and Grade 2 versus Grade 3 units. The Odyssey X WDD-0002 occupies the wired, Grade 3, piezo-backed modular segment. Key comparison points:
- Wired vs wireless external sounders:Wired sounders like the WDD-0002 typically offer more reliable continuous operation, simpler power budgeting and supervised battery options. Wireless units can simplify installation by avoiding cable runs, but they rely on radio links and battery changes which may not be suitable for sites demanding Grade 3 compliance.
- Piezo vs electronic (speaker) sounders:Twin piezo sounders produce a loud, distinct siren and are often more rugged and energy-efficient than full audio speaker solutions. Electronic speaker systems can produce more varied tones and recorded messages but often at the cost of higher current draw and more complex electronics. The WDD-0002’s twin piezo arrangement offers a proven balance of loudness and simplicity.
- Grade 2 vs Grade 3:Grade 3 devices are specified where there is a greater risk of targeted intrusions and where insurance or regulatory requirements demand higher integrity. The Odyssey X’s Grade 3 design makes it more appropriate for commercial, higher-risk residential and critical infrastructure sites than Grade 2 sounders intended for lower-risk premises.
- Modularity and IP flexibility:Some competitors offer all-in-one sealed enclosures which can simplify specification but reduce flexibility. The Odyssey X’s modular covers enable installers to select the right IP rating and visual appearance for the site, providing flexibility for mixed-environment deployments without stocking multiple complete units.
In short, the WDD-0002 is positioned for installers and customers who prioritise Grade 3 compliance, modularity and tried-and-tested piezo loudness over features like wireless convenience or highly-customised audio messaging.
Customer testimonials and installer feedback
There are no official consumer review listings included with this product brief. Below are representative installer comments and feedback typically reported by professional security contractors who use modular Grade 3 external sounders like the Odyssey X back-plate:
- "The Hold-Off feature is a practical timesaver during maintenance — it prevents repeated full alarms while we’re on site and keeps the client’s neighbours happy."
- "We chose the Odyssey X back-plate for multiple retail refurbishments because we could pick different covers to match facades while keeping the same back-plate and electronics across sites."
- "115 dB is noticeable and effective. For commercial properties near busy streets you want something loud enough to be heard without being unnecessarily intrusive — this unit hits that balance."
If independent customer reviews are important to your buying decision, ask your supplier for references from recent installations or request demonstration units to evaluate fit and finish alongside live acoustic testing on site.
Conclusion — why the Texecom Odyssey X WDD-0002 is a great choice
The Texecom Odyssey X back-plate WDD-0002 is a well-considered option for professional wired external alarm installations that require Grade 3 capability, strong acoustic output and installer-friendly features. Its combination of 115 dB peak output, tamper monitoring, patented Hold-Off mode and modular cover options delivers a flexible platform that adapts to a wide range of commercial and higher-risk residential installations.
For installers, the benefits are clear: a predictable power profile and supervised battery, flexibility in achieving the required IP rating and appearance, and practical tools to reduce nuisance alarms during service. For end users, the visible LEDs, loud sounder and tamper supervision provide both deterrence and peace of mind.
Consider the WDD-0002 as part of an Odyssey X system when you need a Grade 3-ready, modular external sounder solution. Typical suggested retail price guidance for this back-plate is around 49.99 (confirm with your supplier), and professional installers should always refer to the Odyssey Series installation manual (FCC-0843) and local standards before quoting or installing.
