3M PELTOR WS LiteCom PRO III EX Headset Series (MT73H7F4D10EU-50 / MT73H7B4D10EU-50 / MT73H7P3E4D10EU-50) – Intrinsically Safe Communication Headset for Hazardous Environments

Product Overview

The 3M PELTOR WS LiteCom PRO III EX Headset Series is a professional-grade intrinsically safe communication solution designed for use in hazardous and explosive environments. Combining integrated two-way radio functionality with Bluetooth® connectivity and advanced level-dependent hearing protection, this headset ensures safe and reliable communication in critical applications.

Operating across PMR 403–470 MHz frequencies with both analogue and digital capability, the PRO III EX supports secure long-range communication for industrial and high-risk environments. Its ATEX-certified design ensures safe operation in explosive atmospheres, making it suitable for oil & gas, chemical, and other hazardous industries.

Available in headband, neckband, and helmet-mounted configurations, the WS LiteCom PRO III EX provides flexible deployment while maintaining full compliance with safety requirements.

Key Features

• Intrinsically Safe (ATEX Certified): Designed for safe use in explosive and hazardous environments.
• Integrated PMR 403–470 MHz Radio: Supports professional analogue and digital communication.
• Bluetooth® Wireless Connectivity: Enables connection to mobile devices and communication systems.
• Level-Dependent Ambient Listening: Allows awareness of surroundings while reducing harmful noise.
• High Noise Reduction (SNR 32–33 dB): Provides effective protection in extreme environments.
• Noise-Cancelling Microphone: Ensures clear communication in high-noise conditions.
• Multiple Wearing Styles: Headband, neckband, and helmet-mounted options available.

What Is Included

• 3M PELTOR WS LiteCom PRO III EX headset (selected configuration)
• Integrated analogue/digital two-way radio
• Bluetooth communication module
• Noise-cancelling boom microphone
• Intrinsically safe rechargeable battery system
• Charging solution (approved for hazardous environments)
• User documentation

System Capabilities

• Hazardous Area Communication: Safe operation in explosive atmospheres.
• Professional Radio Communication: Enables long-range communication via licensed frequency bands.
• Bluetooth Communication: Supports hands-free calls and audio streaming.
• Ambient Awareness: Maintains awareness of environmental sounds and alarms.
• Hearing Protection: Reduces exposure to hazardous industrial noise levels.

Technical Specifications

• Model Variants:
  • MT73H7F4D10EU-50 – Headband (SNR 33 dB)
  • MT73H7B4D10EU-50 – Neckband (SNR 32 dB)
  • MT73H7P3E4D10EU-50 – Helmet Mounted (SNR 33 dB)
• Type: Intrinsically Safe Communication Headset
• Connectivity: PMR 403–470 MHz + Bluetooth® wireless
• Audio / Performance: Level-dependent ambient listening with high attenuation
• Microphone: Noise-cancelling boom microphone
• PTT / Controls: On-ear push-to-talk and control interface
• Construction: Rugged, industrial-grade materials suitable for hazardous environments
• Compatibility: Licensed radio systems, Bluetooth devices, and PPE systems
• Usage: Hazardous industrial and explosive environments

Approvals and Certifications

• ATEX Certified (Intrinsically Safe for hazardous areas)
• EN 352-1 / EN 352-3 (depending on configuration)
• EN 352-4 (Level-dependent function)
• EN 352-6 (Communication/audio input)
• CE Approved
• PMR 403–470 MHz compliant (subject to licensing requirements)

Ideal Applications

• Oil & Gas: Safe communication in explosive atmospheres.
• Chemical Processing: Suitable for hazardous production environments.
• Mining: Enables reliable communication underground and in high-risk areas.
• Energy & Utilities: Supports field operations in hazardous locations.
• Industrial Plants: Ensures safe communication in volatile environments.

Industries and Use Cases

• Oil & Gas
• Chemical
• Mining
• Energy
• Utilities
• Industrial Processing

Product Benefits

The 3M PELTOR WS LiteCom PRO III EX headset provides a complete intrinsically safe communication solution for hazardous environments. By combining radio, Bluetooth connectivity, and hearing protection into a single device, it reduces equipment complexity while maintaining safety compliance.

Its rugged design, high attenuation, and advanced ambient listening technology ensure reliable performance in the most demanding and safety-critical applications.

Setup & Compatibility

The headset is configured for PMR 403–470 MHz operation and can be programmed to match site-specific communication requirements. Bluetooth pairing allows connection to approved external devices where permitted.

The helmet-mounted version integrates directly with compatible safety helmets, ensuring seamless PPE compatibility in hazardous environments.

Why Choose This Product

The 3M PELTOR WS LiteCom PRO III EX is the ultimate communication headset for hazardous environments, combining intrinsic safety certification with advanced communication and hearing protection technology. It is ideal for professionals who require reliable, compliant, and high-performance communication solutions in explosive atmospheres.

Product Information

• Manufacturer: 3M PELTOR
• Model: MT73H7F4D10EU-50 / MT73H7B4D10EU-50 / MT73H7P3E4D10EU-50
• Category: Intrinsically Safe Communication Headsets
• Type: ATEX Certified Headset with Integrated Radio & Bluetooth
• Connectivity: PMR 403–470 MHz + Bluetooth®
• Compatibility: Licensed radio systems, PPE, and approved devices
• Usage: Hazardous and explosive environments
• Warranty: Typically 12 months