The Motorola PMMN4067 ATEX IMPRES Remote Speaker Microphone is designed for mission-critical operations in hazardous environments. It delivers clear, reliable voice communication in extreme conditions such as oil and gas facilities, chemical plants, mining sites, and heavy industrial areas.
Featuring advanced IMPRES audio technology, the PMMN4067 suppresses ambient noise and amplifies quiet transmissions. Its windporting design minimizes wind noise and protects against water ingress, ensuring clear communication outdoors or in harsh weather. The microphone includes volume control, an emergency button, and a programmable function key, all operable even while wearing gloves.
Certified for intrinsic safety with ATEX and IECEx approvals and built to IP64 standards for dust and splash resistance, this RSM is durable and dependable. It pairs seamlessly with APX 8000 radios, giving field personnel a robust, reliable communication tool.
Key Features
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IMPRES audio technology: suppresses background noise and enhances weak voices
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Windporting design: reduces wind noise and prevents water ingress
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Emergency button: one-touch alert capability for distress signaling
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Volume control: easy adjustment without touching the radio
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Programmable button: customizable for operational flexibility
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IP64 rated: dustproof and splash-resistant for tough conditions
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Intrinsic safety certified: ATEX and IECEx compliant for hazardous environments
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Durable construction: meets MIL-STD standards for shock, vibration, and drops
Technical Specifications
| Specification | Details |
|---|---|
| Microphone Type | Electret condenser, omni-directional |
| Microphone Sensitivity | ‑44 dB ±3 dB at 1 kHz |
| Microphone Frequency Range | 100 Hz – 4,000 Hz |
| Speaker Sensitivity | 83 dB SPL typical at 1 kHz |
| Speaker Rated Power Output | 0.5 W |
| Speaker Frequency Range | 100 Hz – 4,000 Hz |
| Dimensions (H × W × D) | 60 mm × 55 mm × 27 mm |
| Weight | 0.92 lb (≈417 g) |
| Cable Length | 490 ±25 mm |
| Cable Pull Strength | 40 lbs for 1 minute |
| Cable Bending Life | Minimum 100,000 flex cycles at ±90° |
| Environmental Ratings | MIL-STD-810G (shock, vibration, temperature, humidity) |
| IP Rating | IP64 (dust and splash protection) |
| Intrinsic Safety | ATEX / IECEx / CSA certified |
| Controls | Volume, programmable button, emergency button |
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