Intrinsically safe radios are one of if not the most important form of communication in the Oil and Gas Industry.


Using electronic equipment in a Hazardous Environment requires a special kind of rating where there is a potential risk from explosive atmospheres. Such environments include oil rigs and refineries, gas mains, coal mines, chemical plants and factories, grain silos and other environments where there are potentially explosive or hazardous materials. Standard two way radios should not be used because they can make a potentially hazardous situation even more dangerous.

What is an Intrinsically Safe Radio?
Portrait of senior factory worker giving instructions speaking by portable radio set in modern workshop


In order to be designated Intrinsically Safe, radios must be designed and housed in such a way as to prevent or eliminate the possibility of generating even the tiniest little spark. They must also limit the amount of heat produced by the radio. The batteries used in the radios must also be specially designed to prevent sparks and eliminate short circuiting. Even the radio housing itself must be designed and constructed of materials to prevent or eliminate friction, which can create static electricity and generate sparks.


Radio Certification

Intrinsically safe two way radios are manufactured according to strict codes and regulations set by the National Fire Protection Association. The manufacturing facilities and processes are supervised by Factory Mutual, an insurance and loss prevention company approved by the US government to oversee enforcement of the NFPA codes.


Radios manufactured as Intrinsically Safe carry the FM (Factory Mutual) Approved certification mark.

This is generally the USA standard for all industries for intrinsically safe. FM Approved radios are approved in Class Ι, ΙΙ and ΙΙΙ, Division 1, Groups C, D, E, F and G & Class Ι, Division 2, Groups A, B, C and D.


What features to look for an effective Intrinsically Safe Radio

These are a few features found on most Intrinsically Safe Radio but are not limited to:

IP55 Water and Dust Resistant

MIL-STD-810-C, -D and -E

Two Tone and Five Tone Codes

512 Channels/128 Zones

400-450MHz or 450-512 MHz UHF Frequencies (UHF Version)

136-174 MHz VHF Frequencies (VHF Version)

Privacy Codes

5 Watts Transmit Power

3 Selectable Power Levels Per Channel



In addition to the radios, any accessories used, such as microphones and headsets, need to be intrinsically safe.


To learn more about Intrinsically Safe Radio or any other Intrinsically Safe, Explosion Proof or Hazardous Area products, please contact our experts at: or call us on 832-699-6726




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