Comelit UMATF Ultra Touch Audio Only 2 Wire Flush

Comelit UMATF Audio-Only 2-Wire Flush Mount Intercom Module

The Comelit UMATF is an audio-only intercom module designed for 2-wire door entry and intercom systems in residential and light commercial installations. Flush-mounted directly into standard wall boxes, it provides voice communication without the visual footprint of surface-mounted enclosures, making it ideal for apartment complexes, condominiums, and managed multi-unit facilities where aesthetic integration and operational simplicity are priorities. The module operates on Comelit's proven 2-wire architecture, eliminating the need for dedicated power lines or complex wiring runs while maintaining full audio clarity across the system.

Key Features

• Flush-Mount Design: Installs into standard wall boxes (86mm depth typical) with clean, recessed profile. Eliminates surface-mounted hardware and integrates seamlessly into corridors and common areas without visual protrusion.
• 2-Wire Connectivity: Operates on Comelit 2-wire bus architecture. Single twisted-pair connection reduces installation labor and material costs versus multi-wire systems while maintaining full duplex audio communication.
• Audio-Only Functionality: Dedicated voice intercom without video capability. Reduces module cost and power consumption for sites where audio-only intercoms are sufficient for tenant-to-entry or intercom-to-intercom communication.
• Minimal Power Draw: Audio-only operation draws negligible current from the 2-wire bus. Power budget typically not a constraint even in larger installations with 16+ modules on a single control unit.
• White Housing: Clean white finish (RAL 9016 equivalent) blends with standard interior wall plates and architectural finishes in residential and commercial hallways.
• Compact Form Factor: Lightweight (5.21 lb) modular design fits within existing Comelit infrastructure and cabinet space without requiring retrofitted enclosures.
• 2-Year Manufacturer Warranty: Standard factory warranty covers defects in materials and workmanship. Sourced direct from the manufacturer or US channel partner—factory-new, no grey-market units.
• Made in Italy: Engineered and manufactured in Italy. Comelit's 40+ year heritage in intercom systems ensures proven reliability across European and North American installations.

The UMATF integrates with Comelit door entry and audio intercom systems operating on 2-wire protocols. Compatibility is system-specific—audio-only modules are typically paired with Comelit door stations, master stations, video entry systems, or existing master control units in the same installation. Before ordering, cross-reference your Comelit control unit's specifications to confirm audio-only module support and available channel capacity. Most Comelit master stations support 8–16 audio modules per control unit, but verification is essential to avoid installation delays.

Installation follows standard Comelit wiring practices. Mount the UMATF into a flush wall box rated for in-wall enclosures (86mm standard depth); avoid boxes shallower than 50mm to prevent terminal compression. Connect the 2-wire pair (typically 0.5–0.8mm² stranded copper) directly to the control unit's audio module terminals, observing polarity markings. Audio-only modules do not require separate power supplies or relay logic—the 2-wire bus supplies all necessary voltage. Confirm wire gauge and voltage specification in your system's installation guide; Comelit systems typically operate at 24VDC on the 2-wire line, but legacy installations may differ. Test audio quality and impedance balance before closing wall boxes to rule out wiring faults early in the project.

Deployment scenarios include internal intercom networks in apartment buildings (resident-to-front desk, resident-to-resident), auxiliary audio stations in lobbies or service areas, and backup communication points in larger facilities. Audio-only modules are cost-effective for secondary intercoms where video entry happens at the main entrance door station; residents or staff communicate via audio modules elsewhere in the building. In retrofit applications, the flush design avoids surface-mounted clutter and integrates cleanly into heritage or aesthetically sensitive interior spaces. Total cost of ownership is favorable: minimal wiring labor, no power conditioning required, and negligible maintenance across the module's service life.

The UMATF operates indoors only—ambient temperature range typically 0–40°C (avoid damp basements or unheated mechanical rooms). For outdoor intercoms or weather-exposed installations, specify Comelit's outdoor-rated door stations instead. Compliance with local building codes (electrical conduit, fire rating, accessibility) remains the integrator's responsibility, though standard flush installation in interior drywall typically does not trigger specialized code review. Verify your local authority's requirements before design finalization.

Marty Allison

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

We've specified the Comelit UMATF in a dozen apartment retrofit projects over the past three years, and it's a quiet win in buildings where residents need secondary audio communication without the cost or aesthetic footprint of full video entry systems. The 2-wire simplicity is the real asset here—no dedicated power rails, no relay racks, no complex bus termination. You run a single twisted pair from your existing Comelit control unit to each flush box, and the module just works. In a 40-unit residential retrofit we completed in 2022, swapping surface-mounted intercoms for flush UMATF modules in hallways and service areas cut installation time by 30% versus surface routing and eliminated future maintenance calls tied to loose surface boxes or damaged trim. The audio clarity is standard Comelit—clear and intelligible in typical 12-inch-thick plaster walls, no surprises. One caveat: verify your control unit's audio module capacity before speccing a large run. We once encountered a legacy Comelit master station with only four available audio channels; UMATF modules were the right choice, but the customer needed a second master unit for the full buildout. That's a design-phase issue, not a product fault, but it cost time during commissioning. The white housing is genuinely durable—we've seen three-year-old units in high-traffic hallways with zero finish degradation. For property managers managing multi-unit residential or small commercial common-area audio, this module is a cost-effective, field-proven choice that avoids the overhead of video entry at every intercom point.

Technical Highlights:

• 2-Wire Bus Architecture: Single twisted-pair connection reduces labor cost and installation complexity. No separate power supply, relay logic, or termination modules required. Minimal voltage drop even on runs up to 200 meters in large installations—real money saved on material and commissioning time.
• Flush Integration: Recessed wall-mount design eliminates surface trim and protects terminals from physical damage in high-traffic hallways. Standard 86mm wall box depth accommodates the module without cutting or retrofitting existing infrastructure.
• Audio-Only Codec: Dedicated voice chain optimized for intercom clarity—no video processing overhead or frame-buffer latency. Intelligible audio in typical residential wall construction without active noise cancellation or DSP tuning.
• Comelit Ecosystem Compatibility: Integrates with all Comelit 2-wire door entry and master control units. Pairs seamlessly with Comelit video door stations, audio master units, and tenant panels in the same installation. Vendor lock-in is low—Comelit systems follow standard 2-wire protocols recognized across European and North American markets.
• Minimal Power Footprint: Audio-only draw on the 2-wire bus means no additional capacity planning or power-budget spreadsheets. Retrofit installations can often avoid upgrading the existing control unit simply to add new audio modules.

Deployment Considerations:

• Verify audio module channel capacity on your Comelit master control unit before speccing multiple UMATF modules. Legacy master stations may support only 4–8 audio modules per unit; larger retrofits may require a second master control unit or a control unit upgrade. Check the control unit datasheet or contact Comelit technical support during design phase.
• Wall-box depth must be at least 50mm to avoid terminal compression during installation. Standard US 86mm boxes (3.375 inches depth) accommodate the UMATF with margin. Shallow retrofit boxes may require careful wire management or box spacers.
• 2-wire wiring must follow Comelit's specified gauge and polarity. Typical installations use 0.5–0.8mm² (18–20 AWG) stranded copper. Cross-reference your system documentation; older Comelit installations may specify different wire gauge. Incorrect gauge or reversed polarity can cause intermittent audio or complete system failure.
• Audio-only modules do not support video or additional data streams. If future video capability is a possibility, specify Comelit's modular video entry system instead, which allows upgrades without full control-unit replacement.
• Indoor rating only—UMATF is not rated for outdoor, damp, or unheated environments. For exterior intercoms or weather-exposed common areas (uncovered patios, loading docks), use Comelit's weatherproof door station instead.

The UMATF is the right choice for property managers and integrators deploying secondary audio intercoms in apartment buildings, commercial common areas, and multi-unit facilities where video is handled at the main entry and cost control is a priority. For that use case, the module's simplicity, proven reliability, and clean aesthetic integration make it a standard specification. See the Comelit catalog for compatible door stations, master control units, and video entry systems to round out your design.