Intrinsically safe radios · Malaysia
Hazardous zone? The radio needs an Ex rating.
In flammable gas or combustible dust, a normal radio is an ignition risk. Intrinsically safe (IS) radios are certified not to spark. Tell us your zone; see whether you need IS and exactly which marking to ask for.
ATEX / IECExcertification
Ex markingmust match the zone
Certified batteryor it's void
IS Fit CheckerLIVE
Answer 2 — do you need an IS radio?
Awaiting input
Check your requirement
Whether you need an intrinsically safe radio — and the zone and Ex marking to specify — appears here as you choose.
Safety first: a standard two-way radio must never enter a classified hazardous area. Only a radio certified intrinsically safe for that specific zone, gas/dust group and temperature class is permitted — and only with its certified IS battery fitted. This page is a buyer's orientation, not a substitute for your site's hazardous-area classification and competent-person sign-off.
Know your zone
Hazardous zones decide what radio is allowed.
Areas are classified by how often a flammable atmosphere is present. Gas uses Zones 0/1/2; combustible dust uses Zones 20/21/22. The zone sets the minimum protection level your radio must carry.
Gas · Zone 0 / Dust 20
Present continuously
Flammable atmosphere is there continuously or for long periods.
Highest protection (e.g. Ex ia) — very restricted
Gas · Zone 1 / Dust 21
Likely in normal use
Likely to occur in normal operation — the common case for portable radios.
Intrinsically safe radio required (e.g. Ex ib/ia)
Gas · Zone 2 / Dust 22
Rare & short
Unlikely, and only for short periods if it does occur.
IS-rated radio still required for the zone
Decode the marking
What an Ex marking actually tells you.
Procurement should read the full marking, not just "explosion proof" on a listing. Every part has to match your site.
ExibIICT4Gb
ibProtection level (ia = highest / Zone 0)
IICGas group (IIC covers hydrogen/acetylene)
T4Max surface temp class (T4 = 135°C)
GbEquipment protection level for gas
Before you buy
Five things procurement must verify.
1Ex marking vs zoneThe marking must cover your zone, gas/dust group and temperature class — not just say "intrinsically safe".
2Valid certificateA current ATEX and/or IECEx certificate from a recognised body, matching the exact model.
3Certified IS batteryIS approval applies to the radio plus its certified battery. A standard battery voids the rating.
4Approved accessoriesEarpieces, speaker-mics and antennas must also be approved for use in the zone.
5Site classification on recordMatch purchases to your documented hazardous-area classification and competent-person sign-off.
Answers
Common IS radio questions.
When do I need an intrinsically safe walkie talkie?
Whenever a radio will be used in a classified hazardous area — where flammable gas, vapour or combustible dust can be present. In those zones a standard radio is an ignition risk, so only a radio certified intrinsically safe (IS) for that specific zone, gas/dust group and temperature class is permitted.
What is ATEX and IECEx?
They are the certification schemes for equipment used in explosive atmospheres — ATEX is the European framework and IECEx is the international one. An IS radio should carry a valid certificate and an Ex marking (for example Ex ib IIC T4) that matches your site's zone, gas group and temperature class.
Can I put a normal radio in a hazardous zone if I'm careful?
No. A standard two-way radio must never enter a classified hazardous area, regardless of how it is used. The energy in its circuits or battery can ignite a flammable atmosphere. Only a properly certified IS radio, with its certified battery and approved accessories, is permitted.
Does the battery affect the intrinsically safe rating?
Yes. Intrinsic safety certification applies to the radio together with its certified IS battery. Fitting a standard or non-approved battery voids the rating, so always use the certified battery and approved charging arrangement.
Can Octogen advise on IS radios for our site?
Yes. Octogen can advise on intrinsically safe radio options and the Ex marking to specify for your zone, and supply for hazardous-site operations across Malaysia. Share your zone classification and gas/dust details for a tailored recommendation.
Send your zone. Get the right Ex-rated radio.
Tell us your hazardous-area classification, gas or dust group and team size — we'll specify the intrinsically safe radio, battery and accessories that match.
Ask about IS radiosWhatsApp +60 16-996 9446 · hazardous-site radio advice