Intrinsically Safe Mobile Phones for Zone 1/21

Intrinsically Safe Mobile Phones for Hazardous Areas

Intrinsically safe mobile phones are certified communication devices engineered for hazardous areas where flammable gases, vapors, dust, or fibers may be present. Infinity EX supplies ATEX certified mobile phones for Zone 1/21 and Zone 2/22 industrial environments, including oil and gas, petrochemical, mining, offshore, LNG, chemical processing, and maintenance operations.

What Is an Intrinsically Safe Mobile Phone?

An intrinsically safe mobile phone is designed so its circuits, battery, enclosure, ports, and surface temperature cannot release enough electrical or thermal energy to ignite a hazardous atmosphere under approved operating conditions. These devices are used where standard smartphones are not permitted because even a spark, hot surface, damaged battery, or electrical fault could become an ignition source.

For industrial buyers, the most important checks are the zone rating, gas and dust certification, temperature class, IP rating, operating system, connectivity, support lifecycle, and whether the device matches the site’s ATEX, IECEx, NEC, or CEC requirements.

Infinity EX Intrinsically Safe Mobile Phone Range

Model	Best For	Certification Focus	Connectivity	Key Strength
EX72 Plus	Zone 1/21 field communication	ATEX Zone 1/21	4G LTE	Compact rugged Android smartphone for daily hazardous-area operations
EX 101 Ultra	Higher performance field teams	ATEX Zone 1/21	5G	Modern Android performance, strong camera, NFC, and industrial workflow support
EX 027	Voice-first and push-to-talk teams	ATEX/IECEx Zone 1/21	4G LTE	Practical feature phone for simple, reliable field communication

ATEX, IECEx, Zone 1/21, and Zone 2/22 Explained

ATEX and IECEx certifications show that a device has been assessed for use in explosive atmospheres. Zone 1 means an explosive gas atmosphere is likely during normal operation. Zone 21 applies to combustible dust atmospheres. Zone 2 and Zone 22 usually indicate lower-frequency risk, but the device still needs the correct certification for the work area.

Classification	Typical Risk	Example Sites
Zone 1 / Zone 21	Explosive atmosphere may occur during normal operations	Refineries, offshore platforms, chemical plants, fuel loading bays, dusty process areas
Zone 2 / Zone 22	Explosive atmosphere is not likely during normal operation, or occurs briefly	Storage areas, packaging areas, warehouses, utility spaces, some maintenance zones
Class I Division 1	North American hazardous location classification where flammable gases or vapors can exist under normal conditions	Oil and gas sites, petrochemical plants, gas handling facilities

Explosion-Proof Phone vs Intrinsically Safe Phone

The terms are often used together, but they do not always mean the same protection method. An intrinsically safe phone limits energy so ignition cannot occur. An explosion-proof or flameproof design may rely on containment, enclosure strength, sealing, or other protection concepts. The correct choice depends on the certified rating required by your hazardous area classification.

For a deeper technical comparison, read our guide to explosion proof vs intrinsically safe equipment.

Top Intrinsically Safe Mobile Phone Manufacturers and Models

Industrial buyers often compare purpose-built ATEX phones, intrinsically safe smartphones, and certified enclosure systems. Commonly researched manufacturers and models include Infinity EX EX72 Plus, Infinity EX EX 101 Ultra, Infinity EX027, ecom Smart-Ex devices, i.safe MOBILE IS540.1 and IS530.2, Bartec SP9EX1 or Pixavi devices, Xciel or Xshielder enclosure systems, and Conquest EX series phones.

The right choice should be based on zone rating, certification documents, operating system, connectivity, camera policy, push-to-talk support, MDM compatibility, local availability, warranty, and after-sales support.

Industries That Use Intrinsically Safe Mobile Phones

• Oil and gas refineries
• LNG and gas processing plants
• Offshore platforms and marine operations
• Petrochemical plants
• Chemical processing facilities
• Mining and tunneling operations
• Pharmaceutical manufacturing
• Grain handling and combustible dust environments
• Field maintenance, inspection, and shutdown teams

How To Choose the Right Intrinsically Safe Mobile Phone

1. Confirm the hazardous area classification: Zone 1/21, Zone 2/22, or Class/Division.
2. Check ATEX, IECEx, NEC, CEC, or local compliance requirements.
3. Decide between a smartphone, feature phone, tablet, or certified enclosure system.
4. Confirm IP rating, drop protection, temperature range, and glove-friendly usability.
5. Check connectivity needs: 4G LTE, 5G, Wi-Fi, Bluetooth, NFC, GPS, and push-to-talk.
6. Confirm camera policy, including whether a no-camera model is required.
7. Review MDM, enterprise app, Android version, warranty, and local support.

Related Infinity EX Guides

• ATEX certified explosion-proof mobile phones
• All ATEX explosion-proof phones and tablets
• Flame proof mobile phone buyer guide
• Explosion-proof cell phones for hazardous areas
• Zone 1 hazardous area classification guide
• ATEX communication devices for hazardous zones

Frequently Asked Questions

Can a normal smartphone be used in a hazardous area?

A normal smartphone should not be used in a hazardous area unless it is part of an approved certified solution for that area. Standard consumer phones are not designed or certified to prevent ignition in explosive atmospheres.

Do I need a Zone 1 or Zone 2 intrinsically safe phone?

You need the rating that matches your site classification. Zone 1/21 usually requires a higher protection level because explosive gas or dust atmospheres may occur during normal operations. Zone 2/22 applies to lower-frequency risk areas.

Are intrinsically safe mobile phones available with Android?

Yes. Infinity EX supplies intrinsically safe Android mobile phones such as EX72 Plus and EX 101 Ultra for hazardous-area workflows, inspections, communication, and enterprise apps.

Can intrinsically safe phones support push-to-talk?

Many hazardous-area phones can support push-to-talk workflows depending on the model, network, software, and deployment requirements. Confirm PTT support before purchase if instant team communication is required.

Do intrinsically safe phones come without a camera?

Camera-free options may be required in sensitive oil, gas, defense, and high-security industrial sites. Infinity EX can help identify suitable phone options based on your camera policy and certification needs.

Need help choosing a certified device? Contact Infinity EX with your site classification, industry, country, and required features.