Description
Motorola PMMN4067B ATEX IMPRES Remote Speaker Microphone
Intrinsically safe RSM with IMPRES audio, windporting, and emergency button. ATEX/IECEx/CSA certified for Zone 1 and Zone 2 hazardous environments. IP64 rated. Updated version of the PMMN4067A and PMMN4067.
The Motorola PMMN4067B is a high-performance, intrinsically safe remote speaker microphone designed for the world’s most demanding and volatile environments. Fully ATEX/IECEx and CSA certified, it operates safely in areas where flammable gases or combustible dust are present. Motorola’s IMPRES technology automatically suppresses background noise and amplifies quiet transmissions, ensuring mission-critical voice commands are heard clearly even in the presence of heavy industrial machinery or emergency sirens.
Advanced Windporting technology eliminates howling and whining caused by high winds and prevents water from clogging the microphone element — ensuring consistent performance in torrential rain. A dedicated volume control toggle and highly visible orange emergency button provide instant access to critical radio functions even while wearing heavy protective gloves. Ideal for oil and gas, chemical processing, and fire rescue teams. The PMMN4067B is the updated version of the PMMN4067A and PMMN4067.
Key Features & Benefits
ATEX/IECEx/CSA Intrinsically Safe: Certified for Zone 1 and Zone 2 hazardous environments where explosive atmospheres may exist.
IMPRES Smart Audio: Automatically optimizes audio levels and suppresses ambient noise for superior voice intelligibility.
Windporting Technology: Provides clear communication in high-wind conditions and prevents water-clogging during heavy rain.
Orange Emergency Button: Large, easy-to-access button allows users to signal distress and request immediate assistance in seconds.
Dedicated Volume Control: Side-mounted toggle for rapid adjustment of incoming transmission levels without reaching for the radio.
IP64 Rated: Dust-tight and splash-resistant construction for reliable operation in harsh industrial and outdoor settings.
Fully Sealed — No Audio Jack: Maintains strict ATEX and IP64 safety ratings; no earpiece connection port.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model / SKU |
PMMN4067B |
| Replaces |
PMMN4067A, PMMN4067 |
| Product Type |
Remote Speaker Microphone (RSM) |
| Safety Certification |
ATEX / IECEx / CSA (Zone 1 & Zone 2) |
| Ingress Protection |
IP64 (Dust-Tight & Splash Resistant) |
| Audio Technology |
IMPRES™ |
| Microphone Type |
Windporting |
| Audio Jack |
None (Fully Sealed) |
| Controls |
PTT, Volume Toggle, Emergency Button |
| Country of Origin |
Malaysia |
Compatibility
| Model |
Series |
| DP4401EX, DP4801EX, DP4000 EX Series |
Motorola DP4000 EX Series (ATEX) |
| DGP8550EX |
Motorola DGP Series (ATEX) |
| MTP8500EX, MTP8550EX |
Motorola MTP Series (ATEX) |
| XIR-P8608EX, XIR-P8668EX, XIR-P8600 EX Series |
Motorola XIR P8000 EX Series (ATEX) |
| XPR6580IS |
Motorola XPR6000 IS Series |
| XPR7350e, XPR7550e |
Motorola XPR7000e Series |
What’s Included
| Description |
SKU/Model |
Status |
| ATEX IMPRES Remote Speaker Microphone |
PMMN4067B |
Included |
| Swivel Clothing Clip |
Integrated |
Included |
| Heavy-Duty Coiled Cord |
Integrated |
Included |
| ATEX Safety Leaflet |
— |
Included |
Recommended Accessories
Frequently Asked Questions
Can I use an earpiece with this microphone?
No. The PMMN4067B is a fully sealed unit with no audio jack, maintaining its strict ATEX and IP64 safety ratings for hazardous zones.
What is Windporting?
Windporting is a specialized housing design that prevents wind from creating turbulence over the microphone element, ensuring your voice is heard clearly even in high-wind conditions. It also prevents water from clogging the microphone during heavy rain.
Does this require a software update for my radio?
As an IMPRES accessory, the PMMN4067B is plug-and-play. However, keeping your radio firmware up to date is recommended to utilize the latest IMPRES audio optimization features.
Warranty
1-year manufacturer’s warranty.
