Speco Technologies CAMMICW Weather-Resistant Line Level Microphone
Overview
The Speco Technologies CAMMICW is a weather-resistant line level microphone engineered for outdoor and indoor surveillance audio integration in facility security deployments. Built from aluminum alloy with a silver finish, the CAMMICW delivers reliable speech-focused audio pickup across spaces up to 120 square feet—typical for hallways, lobbies, and covered entry points. The compact 3-inch diameter × 1-inch height form factor makes it practical for ceiling or soffit mounting without drawing visual attention. This is an accessory-grade microphone, meaning it pairs with existing video recorders, audio I/O modules, or surveillance-grade audio switches; it does not operate standalone and requires external 9–12 VDC power (a separate PSW5 power supply is recommended by the manufacturer).
Key Features
- Aluminum Alloy Weather Resistance: The silver-finish aluminum housing sheds water and resists corrosion, enabling deployment in covered outdoor locations (eaves, protected overhangs) without additional weatherproofing enclosures. This cuts installation complexity and cost in mixed indoor/outdoor layouts.
- 120 Square Foot Coverage: Sensitivity of −43dB @ 1000 Hz covers typical commercial interior spaces and hallways with consistent gain. You won't need multiple units for average room-size deployments, reducing total system cost and wiring complexity.
- Automatic Gain Control (AGC): Built-in AGC prevents clipping and distortion as ambient sound levels fluctuate—critical when recording speech across variable noise floors (HVAC cycling, traffic, doors closing). Recorder audio channels remain clean and usable without manual level adjustment.
- Integrated Voice Pre-amplification: Pre-amp and speech processing circuits optimize signal clarity for intelligible voice capture in security and investigative scenarios. This means better audio quality at the recorder end, reducing post-processing or re-recording costs.
- Multi-Layer Electrical Protection: Integrated lightning surge protection, reverse polarity protection, and power protection module guard against field wiring errors and power transients. In distributed audio systems, this reduces callbacks and hardware failures from accidental wiring mistakes or electrical faults.
- Extended Transmission Option: Standard 25-foot transmission distance handles typical ceiling installations. The optional UTPAUDIO accessory extends distance up to one mile over standard CAT5E UTP cable—eliminating the need for individual power supplies at each microphone and centralizing audio wiring in larger facilities or multi-building campuses.
- Low Power Draw: Operates at 25mA maximum current (9–12 VDC), so a single PSW5 power supply can feed multiple CAMMICW units without oversizing. This reduces power infrastructure cost in distributed installations.
- Signal-to-Noise Ratio (SNR) 65dB Maximum: This means usable audio signal strength significantly outweighs background hiss, delivering clear speech-level recordings even in moderate ambient noise environments.
- NDAA Section 889 Part B Compliant: Products meet National Defense Authorization Act guidelines, essential for government, education, and institutional procurement where vendor country-of-origin and supply chain restrictions apply.
- 2-Year Manufacturer Warranty: Standard hardware defect coverage provides budget predictability and reduces risk on multi-unit deployments.
Integration and Compatibility
Audio connection is three-wire: red (power), black (ground/signal return), white (audio signal output—line level). Line-level output integrates with standard recorder audio inputs, IP audio I/O modules, and audio mixing equipment. The CAMMICW does not support PoE or camera-sourced power; external 12VDC power via PSW5 or equivalent is required. Audio format is analog; no digital conversion or network capability exists on this unit. If you need extended transmission distance or centralized routing, pair this unit with the UTPAUDIO extender accessory, which enables mile-range transmission over CAT5E without additional power supplies at the microphone location.
Deployment Considerations
The aluminum construction is rated for weather resistance and suitable for covered outdoor mounting—think eaves, soffits, protected overhangs—but not full submersion or direct hail impact. Indoor applications (ceilings, walls) encounter no environmental stress. The compact footprint allows discrete mounting in most ceiling tile or soffit applications. Integrators should plan wiring carefully: each CAMMICW requires a dedicated 12VDC power line back to PSW5 (unless using UTPAUDIO for centralized transmission). In high-interference environments (RF-heavy facilities, industrial sites), twisted-pair shielding on audio lines reduces hum and crosstalk. Test audio levels at the recorder before final commissioning; AGC is automatic but response time is firmware-dependent on the recorder side.
Frequently Asked Questions
Q: Does the CAMMICW require PoE power?
A: No. The CAMMICW operates on 9–12 VDC from an external power supply (PSW5 recommended). It does not draw power from camera circuits or IEEE 802.3af PoE sources.
Q: What is the maximum audio transmission distance?
A: Standard transmission is 25 feet. With the optional UTPAUDIO accessory, distance extends to one mile over CAT5E UTP cabling.
Q: Is the CAMMICW NDAA-compliant?
A: Yes. The CAMMICW complies with NDAA Section 889 Part B guidelines for government and institutional procurement.
Q: Can I mount the CAMMICW outdoors?
A: Yes, in covered outdoor locations (eaves, protected soffits, overhangs). The aluminum housing is weather-resistant but not rated for full submersion or direct hail impact. Use only in covered applications.
Q: What warranty does the CAMMICW include?
A: The CAMMICW comes with a 2-year manufacturer warranty covering defects and hardware failures.
Q: What is the audio output type?
A: Line-level analog output compatible with standard recorder audio inputs and IP audio I/O modules. No digital or network output is provided.
James EverettPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The CAMMICW fills a specific audio niche: you need speech-level recording in spaces up to 120 square feet without PoE infrastructure or complex external weatherproofing. The −43dB sensitivity and 65dB SNR deliver usable voice clarity in moderate ambient noise, and the aluminum alloy construction handles covered outdoor duty (eaves, soffits) where cheaper plastic housings would degrade or fail. If you're integrating audio into a facility already running 12VDC power (common in legacy security systems or facilities with dedicated PSW5 supplies), this is a straightforward addition. The CAMMICW is not for PoE-only shops or installations requiring network audio streaming—it's purely analog line-level, which is both a limitation and a strength depending on your VMS and recorder architecture.
Technical Highlights:
- AGC + Voice Pre-amp: Automatic gain control prevents clipping across dynamic sound levels, and integrated pre-amplification optimizes speech clarity. In variable-noise environments (lobbies with traffic noise, server rooms with HVAC), you'll capture intelligible audio without manual recorder-side gain tweaking.
- Multi-Layer Electrical Protection: Reverse polarity, surge, and power protection built in—this reduces field failures in distributed audio wiring where pin misconnection or power transients are common. One less callback category on your service log.
- Extended Range Option (UTPAUDIO Accessory): Standard 25-foot transmission covers most ceiling runs. With UTPAUDIO, you reach one mile over CAT5E UTP, eliminating the need for individual power supplies at each microphone and simplifying centralized audio distribution in large facilities or campuses.
- Low Power Draw (25mA max): A single PSW5 power supply can feed multiple CAMMICW units, reducing power infrastructure cost and simplifying provisioning in multi-unit deployments.
Deployment Considerations:
- Weather resistance is limited to covered outdoor (eaves, soffits, protected overhangs). Full-sun or hail-exposed mounting is outside spec—don't force it.
- This is analog line-level only; if you're converting to networked audio or streaming, you'll need an additional audio interface or IP audio I/O module downstream. Plan for that integration cost if it applies to your system architecture.
- Each microphone requires a 12VDC power line back to PSW5 unless you deploy the UTPAUDIO extender. In retrofit scenarios with long runs or multiple units, UTPAUDIO CAT5E centralization can simplify wiring and reduce total power supply count.
The CAMMICW is the right choice for integrators provisioning speech-focused audio into facilities with existing 12VDC infrastructure, mixed indoor/covered-outdoor coverage needs, and recorder-level audio input (not network audio modules). Its AGC and voice processing deliver clean, investigatively usable recordings in moderate ambient noise; the electrical protection and NDAA compliance make it suitable for institutional and government procurement. Skip it if your shop is all-PoE or if you need network audio streaming or digital codec flexibility—those requirements demand a different audio platform.
