Entel Logo



The MED-approved industrial grade DTEx Fire Fighter Series meets the latest standard implementation regulation MED/5.20 and European ATEX directive. Built without compromise, this portable delivers outstanding loud and clear audio. The ultra-tactile buttons and high torque controls allow the DTEx to be operated even with gloved hands, and the high-contrast OLED display is easy to read in low-light conditions.

The DTEx Fire Fighter Series sets the benchmark for next-generation MED-compliant firefighter radios with a market-leading IP68 submersible rating (2 meters 4 hours). You can depend on the DTEx to cope with everyday use in extreme and hostile environments.

We have a comprehensive selection of certified and approved audio accessories for the DTEx Fire Fighter Series, ensuring fire teams receive consistently reliable and intelligible communications. Our bone conductive throat and skull microphones perform outstandingly in high ambient noise environments and have become the industry standard for onboard firefighter teams. 


  • Analogue only
  • All Marine VHF channels (INT, USA, CAN, including new 4-digit channels)
  • Display marine channel number & channel name
  • IP68 Submersible (2m, 4 hours) 
  • Compliant to MILSTD construction 810C/D/E/F
  • Exceptionally loud & best clarity audio - in class
  • Programmable buttons 
  • Salt Water anti-corrosion chassis coating
  • Gold plated accessory connector 
  • Locking accessory connector 
  • Accessory audio tailoring optimises audio for each accessory 
  • Easy to read, high contract white on black OLED display
  • Memory Scan
  • Programmable switch on logo
  • Drag and drop programmer, can be done onboard

We are releasing new features all the time, if there is a feature you require that is not already listed above please give us a call.

Youtube Video


Channels - The DT844FF VHF Marine can operate in either USA/INT/CAN modes or a simple custom channel line-up, for example; 6,16,15,17,69,72

Environmental protection to IP68 (2 Meters for 4 hours) - The DT844FF offers the highest submersibility rating of any manufacturer. This protects against corrosion, withstanding total immersion in water to a depth of 2 meters for 4 hours to protect against the likely hazards encountered in extremely wet environments.

Robust accessory socket – DT844FF accessory socket has been specifically designed so that when an accessory is secured to the portable, the connection can withstand any amount of punishment; from dropping to careless misuse. The rugged, multi-pin interface and Micro-USB socket are both submersible and gold-plated to minimize any risk of damage and protect against corrosion. To ensure the integrity of IS protection levels any accessory connected to the handset automatically undergoes a validation process to safeguard against non-compliant accessories being used. All DT844FF accessories incorporate a robust locking connector to further safeguard the safety of the user.

High contrast white on black OLED display – the DT844FF model benefits from a high contrast white on black OLED display that delivers superior readability in varying light conditions adding to the DT844FF’s intuitive user interface.

Li-ion battery technology & improved talk time – DT844FF radios are supplied with the latest intelligent Lithium-ion battery technology as standard. One key advantage of Lithium-ion battery technology is the way it eliminates ‘memory effect’, meaning that there is no need to fully discharge your battery before recharging. As a result of this, you are assured of a full charge each and every time you take your Entel battery from its charger.

Superior Audio - DT844FF portables deliver loud & crisp audio no matter what environment you are in. All of the DT844FF’s range of accessories incorporate a robust locking plug and high-grade cable and benefit from Entel’s proprietary “Smart Speech Tailoring” technology. This automatically detects the type of accessory connected and optimizes the audio accordingly to deliver the very best performance.


Simple on-board reprogramming app - With our free, unique and simple to use PC app, you can easily re-program a DT844FF radios whilst still onboard. The user friendly app makes it easy to drag and drop a new programming file from an email to your DT844FF radio(s). This is a simple and seamless process that can be carried out by non-technical personnel.

Keylock - To avoid accidental operation, your radio's keys & controls can be locked.

Memory scan – enables the radios user to create / change their own channel scan list.

Audio Accessories & BA Support - Entel also offer an extensive range of accessories including Draegor BA, most popular for Fire Fighters is the CXR bone conductive throat and skull microphones which eliminate ambient noise, further enhanced by DT844FF’s speech tailoring technology delivering intelligible communications first time, every time


ATEX IIB T4 Approved - The DT844FF ATEX certified portables meet IIB T4 - the most stringent ATEX ratings as per EU directive 2014/34/EU.


Frequency Range VHF 156-163MHz
Channels Marine INT/USA & CAN inc. new 4-digit CH
Channel Spacing Analogue 12.5KHz & 25KHz
Battery CNB950EV2 1800mAh Lithium-ion
Overall Dimensions (HxWxD) 138mm x 60mm x 38mm
Frequency Stability ±0.5ppm
Operating Voltage 7.4v
Programmable Buttons 3
Battery Endurance (5/5/90 - Analog Mode) 10 hours
Battery care information: Visit entel.co.uk/battery_care


Output Power 3.9W High 1W Low
Modulation Limiting ±2.5KHz / ±5.0KHz
FM Hum and Noise >-40dB / >-45dB
Unwanted Emissions <2nW up to 1GHz, <20nW from 1GHz to 2GHz
Adjacent Channel Power >60dBc / >70dBc
Audio Response (FM) 300Hz to 3KHz -6dB/Octave
Audio Distortion <5%
FM Modulation 16K0F3E


Analogue Sensitivity -120dBm (0.2uV) for 12dB SINAD
Intermodulation Response Rejection >68dB
Adjacent Channel Selectivity >60dB / >70dB
Spurious Response Rejection >70dB
Audio Output Power 1 Watt
Audio Distortion 5%
Hum and Noise >-40dB / >-45dB
Audio Response 300Hz to 3KHz -6dB/Octave
Conducted Spurious Emissions <2nW up to 1GHz, <20nW from 1GHz to 2GHz


Ex Protection ATEX II 2G Ex ib IIB T4 Gb
Operating Temperature -20°C to +40°C
Storage Temperature -40°C to +85°C
Thermal Shock, Humidity, Shock & Vibration, Packing Test, Drop Test Compliant MIL-STD-810 C/D/E/F
Dust & Liquid Ingress IP68 (2m 4h Submersible)

As standard the DT Series portable is supplied with:

  • Rechargeable Li-ion battery pack
  • Emergency one-shot battery pack - For DT844FF & DT885FF only
  • Drop in charger
  • Spring loaded belt clip
  • High efficiency antenna
  • Quick start user guide

Model Selection Filter

Accessory Type

Loading Products

Related Products