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3M™ Peltor™ WS™ LiteCom Pro III Atex Ear Defender MT73H7F4D10EU-50

Key Features

Built-in programmable analog and DMR digital two-way communication radio
Up to 70 programmable radio channels.
Noise Cancelling Waterproof Speech Microphone (IP68).
Voice operated transmission (VOX)
Auto power off function
Battery status indication
Voice guided menu system
Bluetooth® Multipoint Connectivity

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Availability: In stock

Excl. VAT: £965.90 Incl. VAT: £1,159.08

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Product Description


Key Features

Radio solutions stock the all new 3M™ PELTOR™ WS™ LiteCom Pro III Ex Headset, with cutting edge features such as Bluetooth® wireless communication, environmental listening and level dependent hearing protection, offering next generation of protective communication.ngineered with the working professional in mind, the 3M™ PELTOR™ WS™ LiteCom Pro III EX headset is designed to keep you connected in loud and potentially hazardous noise environments.

The ATEX version can be used for work in industries such as Oil & Gas Industry, Mining and where intrinsic safety products are required. Approved for use in potentially explosive environments in accordance with the ATEX directive and the IECEx scheme for dust, gas and underground mining, whilst still being comfortable for everyday use and extended wearability, utilizing simple functions as not to distract from your daily work routine.

Peltor 3M have designed a world class next generation protective communication headset  can be programmed to use depending on your existing two-way radio system to either analog or digital UHF two-way radio transmission, and can be programmed to unique radio frequency channels as needed.

 Key Features:

· Hearing Protection for environments with potentially hazardous noise.
· Built-in programmable analog and DMR digital two-way communication radio
· Headset-to-headset communication.
· Up to 70 programmable radio channels.
· Bluetooth® Multipoint Connectivity, for simultaneous, seamless connection.
· Bluetooth® Streaming Wireless Technology A2DP profile support.
· External Connection Jack 
· Noise Cancelling Waterproof Speech Microphone (IP68).
· Voice operated transmission (VOX) for hands free operation in high noise
· Level Dependent Microphones for ambient listening. Helps improve situational
awareness and communication.
· Push-to-Listen quick activation of Level Dependent Function.
· Stainless Steel Wire Headband offers comfortable pressure during prolonged usage.
· Ghost Voice guided menu in multiple languages


Standards and Approvals

MT73H7*4D10EU-50 is in conformity with the provisions set out in the PPE directive 89/686/EEC,

RED directive 2014/53/EU and the ATEX directive 2014/34/EU.

The product has been examined by;

Finnish Institute of Occupational Health (Notified Body #0403), Topeliuksenkatu 41 b,

FI-00250, Helsinki, Finland.

EMCCert DR. RAŠEK GmbH, Notified Body #0678, Störnhofer Berg 15 91364 Unterleinleiter


DNV Nemko Presafe AS, Veritasveien 3, 1363 Høvik, Oslo Norway, Notified Body #2460.

Intrinsically Safe

MT73H7*4D10EU-50 headsets are ATEX and IECEx certified and approved by DNV Nemko

Presafe AS for use in potentially explosive atmospheres. EC-Type Examination Certificate Number:

Presafe 16ATEX8960X

I M1 Ex ia I Ma -20°C ≤ Ta: ≤ +50°C

II 1G Ex ia IIC T4 Ga -20°C ≤ Ta ≤ +50°C Ga

II 1D Ex ia IIIC T130°C Da -20°C ≤ Ta ≤ +50°C


Article number Description 3M ID SAP ID

MT73H7F4D10EU-50 3M™ PELTOR™ WS™ LiteCom Pro III Ex Headset, 403-470 MHz, Analog/Digital, Ex, EU version, Headband UU008014225 7100098897

MT73H7P3E4D10EU-50 3M™ PELTOR™ WS™ LiteCom Pro III Ex Headset, 403-470 MHz, Analog/Digital, Ex, EU version, Helmet UU008014233 7100098836

MT73H7B4D10EU-50 3M™ PELTOR™ WS™ LiteCom Pro III Ex Headset, 403-470 MHz, Analog/Digital, Ex, EU version, Neckband UU008014217 7100098898

Accessories and Spare parts

MT90-02 Throat microphone for WS™ LiteCom Pro III Ex Headset, ATEX XL001644068 7000040037

ACK082 Rechargeable Li-Ion batterypack (only for WS™ LiteCom Pro III Ex Headset) UU008176040 7100112102

AL2AH Charge cable for ACK082 11003072094 7100067410

FR08 Power Supply for AL2AH XH001680194 7000108521

FL5602-50 External PTT for WS™ LiteCom Pro III Ex Headset, ATEX XH001654579 7000039666

M60/2 Wind shield for surround mic XH001652532 7000039650

HY83 Hygiene kit UU008197921 7100113964

HYM1000 Hygiene tape for boom mic XH001651328 7100064281

M171/2 Wind protector for mic, 2 pcs UU008159483 7100112112


Technical Data Specification

Hearing protection with built in

two-way radio

Hearing protection with leveldependent

function for ambient


Digital two way radio according

to DMR standard.

Bluetooth® Technology

Intrinsically safe design

IECEx Certificate (IECEx Presafe 16.0086X)

Ex ia I Ma -20°C ≤ Ta: ≤ +50°C

Ex ia IIC T4 Ga -20°C ≤ Ta ≤ +50°C

Ex ia IIIC T130°C Da -20°C ≤ Ta ≤ +50°C




Additional Information

Additional Information

Radio Type No
Technology No
Next Day Delivery N/A
Badge No
SKU MT73H7F4D10EU-50

Ofcom Licensing Information

Radio licensing: A guide to licensed and licence-free radios

What is a radio licence and do I need one?
There are two types of two-way radios, licenced radios and licence-free radios (PMR446).
Licenced radios require a dedicated frequency which ensures that only those on that frequency can hear transmissions. In order to access a dedicated frequency, a radio licence granted by Ofcom is required by law. Licences start at £75 for five years.
Licence-free radios (also called PMR446 radios) operate on the PMR446 radio frequency, they can be used by anyone within the UK and EU and as the title suggests they need no radio licence.

Licenced radios

Licenced radios are usually more expensive than licence-free models, but have a larger power output (of up to 5 watts for handheld radios) and so offer increased range and coverage.
For example a primary school would typically find coverage on licence-free equipment sufficient whereas licenced equipment would be better suited to a secondary school, college or university.
In addition, a licence will offer increased security of transmissions through better monitoring of frequencies, especially if the licence is specific to your site.
Licenced radios are generally more robust, with clearer audio quality and the conversation more secure. Licensed radios also offer much more functionality than license-free radios, you can make group calls, send text messages and dial up individual users.

More about your Ofcom licence
In order to obtain your licence, an application to Ofcom has to be made. We are more than happy to apply on your behalf and offer a managed service in order to maintain your Ofcom licence throughout your radio project. Or if you wish to make an application yourself, please feel free to ask us any questions along the way as we have vast experience in completing these forms and can go through it with you over the telephone. The application process is usually complete within 20 working days.

You can find out more by going to:

Licence-free radios

Non licensed radios are a cheaper alternative to licensed radios and can only have a power output of 0.5 watts giving them a fairly small range.
Licence-free radios can be used in the work place and for personal use, ideally where minimal coverage is needed, within small buildings where users are communicating in a close range.
Examples where these radios can be used effectively include smaller schools and construction sites, warehouses, hospitality venues and independent retail businesses.
For leisure they can be ideal for communicating between friends and family while camping and skiing, or if you are at a leisure park or hiking.
All PMR446 radios use the same eight channels. If there are a high number of users in a given area (cities and other built up areas) frequencies become extremely congested leading to interference on the channels, although usually there are multiple channels to select in order to find a clearer channel.