Motorola PMMN4067B ATEX IMPRES Remote Speaker MicrophoneMotorola PMMN4067B ATEX IMPRES Remote Speaker Microphone Intrinsically Safe Audio Solution with Windporting for Hazardous Environments The Motorola PMMN4067B is a high performance, intrinsically safe remote speaker microphone designed for use in the worlds most demanding and volatile environments. Featuring full ATEX IECEx and CSA certification, the Motorola PMMN4067B is engineered to operate safely in areas where flammable gases or combustible dust

Motorola PMMN4067B

ATEX IMPRES Remote Speaker Microphone

Intrinsically Safe Audio Solution with Windporting for Hazardous Environments

The Motorola PMMN4067B is a high-performance, intrinsically safe remote speaker microphone designed for use in the world’s most demanding and volatile environments. Featuring full ATEX/IECEx and CSA certification, the Motorola PMMN4067B is engineered to operate safely in areas where flammable gases or combustible dust are present. By integrating Motorola’s proprietary IMPRES technology, this microphone automatically suppresses background noise and amplifies quiet transmissions, ensuring that mission-critical voice commands are heard clearly even in the presence of heavy industrial machinery or emergency sirens. The Motorola PMMN4067B is the updated version of the Motorola PMNN4067A, and Motorola PMMN4067.

Equipped with advanced Windporting technology, the Motorola PMMN4067B excels in outdoor operations by eliminating the howling and whining sounds caused by high winds blowing across the microphone element. This specialized design also prevents water from clogging the microphone, ensuring consistent performance in torrential rain. With a dedicated volume control toggle and a highly visible orange emergency button, the Motorola PMMN4067B provides operators with instant access to critical radio functions while wearing heavy protective gloves, making it an indispensable tool for oil and gas, chemical processing, and fire rescue teams.

Key Features & Benefits

• ATEX/IECEx Intrinsically Safe: Fully certified for use in Zone 1 and Zone 2 hazardous environments where explosive atmospheres may exist.
• IMPRES Smart Audio Technology: Automatically optimizes audio levels and suppresses ambient noise for superior voice intelligibility.
• Windporting Performance: Specifically designed to provide clear communication in high-wind conditions and prevent water-clogging during heavy rain.
• Integrated Emergency Button: Large, easy-to-access orange button allows users to signal for distress and request immediate assistance in seconds.
• Dedicated Volume Control: Side-mounted toggle allows for rapid adjustment of incoming transmission levels without reaching for the radio.
• IP64 Weather Rating: Dust-tight and splash-resistant construction ensures reliable operation in harsh industrial and outdoor settings.

Specifications

• Brand: Motorola Solutions
• Model Number: PMMN4067B
• Intrinsic Safety Rating: ATEX / IECEx / CSA
• IP Rating: IP64 (Dust & Splash Resistant)
• Technology: IMPRES Audio
• Microphone Type: Windporting
• Audio Jack: None (Fully Sealed)
• Controls: Volume Toggle, Emergency Button, PTT

Compatibility

What's Included

Recommended Accessories

• Motorola DP4801EX ATEX Portable Radio (DP4801EX)
• Motorola MTP8500EX ATEX Battery (PMNN4522)
• Motorola DP4401EX Replacement Belt Clip (PMLN6086)
• Motorola ATEX Leather Carry Case (PMLN6085)

More Resources

• Motorola PMMN4067B ATEX Certificate of Conformity
• Motorola IMPRES Audio Accessory Catalog
• Hazardous Environment Communication Safety Guide

Frequently Asked Questions

• Can I use an earpiece with this microphone? No, the Motorola PMMN4067B is a fully sealed unit without an audio jack to maintain its strict ATEX and IP64 safety ratings for hazardous zones.
• What is Windporting? Windporting is a specialized housing design on the Motorola PMMN4067B that prevents wind from creating turbulence over the microphone, ensuring your voice is heard clearly even in gale-force conditions.
• Does this require a software update for my radio? As an IMPRES accessory, the Motorola PMMN4067B is plug-and-play; however, your radio firmware should be up to date to utilize the latest IMPRES audio optimization features.

Warranty

1-year manufacturer's warranty.