Fike TWINFLEXpro² 4‑Zone 2‑Wire Fire Alarm Kit, 7 Multipoint ASD, 2 MCP, 604-0004

Introduction to the product and its key features

The Fike TWINFLEXpro2 4-Zone 2-Wire Fire Alarm Kit (model 604-0004) is a contractor-focused fire detection solution built on Fikes Twinflex two-wire platform. Packaged as a ready-to-install kit, it combines a 4-zone control panel with seven multipoint aspirating-style (ASD) detectors that include integral sounders, two manual call points (MCPs) and a head-removal tool to simplify maintenance and installation. The kit is designed to reduce wiring complexity while offering flexible detection modes and compliance with recognised industry standards.

• 4-zone TwinflexPro2 control panel (supports up to 32 Twinflex devices per zone)
• 7 multipoint ASD detectors with optional integral sounders (configurable smoke/heat modes)
• 2 Twinflex manual call points with covers and a detector head removal tool
• Panel approved to EN54-2 & EN54-4 (panel approvals; refer to datasheet for details)

Detailed description of specifications and benefits

The strength of the 604-0004 kit lies in the combination of a compact, standards-compliant control panel and the flexibility of two-wire multipoint detectors. Below we break down the main technical specifications and explain how each contributes to real-world benefits.

• Panel model: TwinflexPro2 505-0004 (4-zone) Supports 4 independent zones and up to 32 devices per zone (device loading dependent). This allows installers to cover medium-sized premises without the need for multiple panels.
• Event log: 500 events Useful for fault finding, maintenance records and incident reviews.
• Display: 4 d7 20 character LCD Clear local status readout for engineers and facilities staff.
• Repeater support: RS-485 up to 8 repeaters Enables remote annunciation in reception areas or plant rooms.
• Monitored outputs: Up to 2 sounder circuits (250 mA each) and volt-free fire/fault relays Provides flexible interfacing with building systems and notification appliances.

• Mains supply: 230 V AC (+10% / 15%), 50/60 Hz Standard UK/European mains compatibility.
• Backup battery: 2 d7 12 V, 3.3 Ah (required) Local backup ensures continued operation during mains loss; batteries are user-replaceable.

• Detector type: Twinflex multipoint ASD (photoelectric + thermistor) Combines smoke and heat sensing for adaptable protection.
• Detector modes: 3 smoke modes, 2 fixed heat modes, rate-of-rise and combined (DIP selectable) Installers can tailor detection to the environment (e.g., kitchens vs corridors).
• Integral sounder: Optional integral sounder (~90 dBA when fitted) Local audible warning without separate sounder wiring simplifies design.

• Panel dimensions: 331 d7 331 d7 99 mm; weight ~2.28 kg (excl. batteries) Compact enclosure that fits plantrooms, cupboards or service voids.
• Operating temperature: 50C to 400C Suitable for typical commercial and residential environments.
• Cable type: 2-core screened, 1.5 mmb2 (recommended); max zone length up to 500 m (dependent on wiring and loading) Two-wire architecture means detectors, call points and sounders can share the same pair, reducing cable runs and labour.
• Construction and rating: V0 rated ABS, IP30 Robust enough for internal fixed installations.

• Included items: 1 d7 4-zone panel, 7 d7 multipoint ASD w/sounder, 2 d7 manual call points (with covers), 1 d7 head removal tool.
• Approvals: Panel approved to EN54-2 & EN54-4 (refer to Fike datasheet and TF MP ASD manual for detector approvals and detailed compliance guidance).

Key benefits at a glance: the two-wire architecture reduces material and installation time, selectable detector modes give flexibility for different spaces, alarm differentiation supports better event handling, and monitored outputs plus repeater support allow integration into commercial building management schemes.

Use cases and scenarios where the product excels

The TWINFLEXpro2 4-Zone kit is tailored to situations where installers need a balance between cost, speed of installation and flexible detection. Typical scenarios where the kit excels include:

• Small-to-medium commercial premises: offices, small retail units, community centres and clinics where four zones are sufficient and the installer prefers a compact panel with remote repeater support.
• Residential conversions and multi-room dwellings: apartment refurbishments or HMO projects benefit from the multiple detector modes, alarm verification and the ability to use detectors and MCPs on the same two-core cable to simplify wiring in tight construction phases.
• Retrofit projects: where existing conduit or cable routes are limited and a two-wire solution reduces disturbance to finishes and occupant disruption.
• Satellite buildings and annexes: where a complete, pre-configured kit speeds implementation for satellite offices, plant rooms or storage facilities without requiring complex loop wiring.
• Sites needing clear event audit trails: the 500-event log supports maintenance regimes and health & safety audits, while monitored outputs allow connection to third-party systems for coordinated responses.

Comparisons with similar products in the market

When evaluating the TwinflexPro2 kit, it helps to compare it broadly with two alternative approaches: conventional multi-wire systems and full addressable multi-loop systems.

Conventional systems often require separate cables for detectors, call points and sounders, increasing copper, conduits and labour. The Twinflex two-wire approach reduces cable volume and simplifies routing, which can cut time on site and reduce material costs. For small installations where full addressability is not required, Twinflex provides a pragmatic middle ground with more sophistication than basic conventional panels.

Full addressable systems provide individual device addresses across multiple loops, greater granularity and larger device counts—advantages on large or complex sites. However, they come with higher panel and commissioning costs and require more specialist commissioning. The TwinflexPro2 kit is competitive where the site size, budget and wiring practicality favour a compact, two-wire solution while still offering configurable detector behaviour and event logging.

Several manufacturers offer two-core or similar simplified wiring platforms. The TwinflexPro2 differentiates itself through its multipoint ASD detectors with selectable modes, integral sounder option, and manufacturer-backed panel approvals (EN54-2 & EN54-4). Choosing between platforms typically comes down to installer familiarity, local support, accessory availability and compliance with project-specific approvals.

Customer testimonials and installer feedback

Formal, attributable customer reviews for kit model 604-0004 may not be widely published. Below are anonymised and illustrative comments based on typical installer and end-user feedback for Twinflex-style two-wire systems and the features present in this kit:

• "Installation time was noticeably shorter — running one two-core cable instead of multiple runs saved a day on a small office fit-out." (Installer feedback)
• "Selectable detector modes meant we could use the same detector heads in a staff kitchen and corridor by switching between heat and photo modes." (Facilities manager comment)
• "The integral sounders simplified the design and reduced the number of fittings we had to specify and wire." (Service engineer)
• "Event logging and repeater support gave us confidence that the panel would tie into the buildings monitoring arrangements cleanly." (Contractor)

If you require formal case studies or verified customer references, ask suppliers or Fike-authorised distributors for project references or installation examples in your sector.

Conclusion: why this product is a great choice

The Fike TWINFLEXpro2 4-Zone 2-Wire Fire Alarm Kit (604-0004) represents a practical, installer-focused solution for small-to-medium sized installations that need dependable detection, simplified wiring and flexible detector configuration. Its two-wire architecture offers tangible savings in cable and labour, while the selectable detector modes and optional integral sounders make the kit adaptable to a range of environments. Compliance with EN54 panel standards, event logging, and repeater support add professional deployment and maintenance capabilities that matter to contractors and facilities teams.

For projects where a full multi-loop addressable system would be excessive and where minimising installation disruption is a priority, the TwinflexPro2 kit strikes a strong balance between performance and cost. Confirm approval details and installation guidance with Fike documentation and local regulations, and consult your supplier for compatibility checks, commissioning support and pricing. Supplier-supplied cost data lists cost_price=524.72 and suggested_price=625.0 (currency not specified); verify currency and local supply terms when preparing quotes.

Overall, the 604-0004 kit is a compelling option for contractors and installers seeking a compact, standards-backed, and time-saving fire detection solution for a broad range of commercial and residential applications.