With 16 years in the two-way radio industry, Retevis serves customers in over 170 countries and regions, with more than 40 million units sold worldwide and over 10 million users served globally. The company’s product lineup spans personal radios, commercial two-way radios, amateur radio equipment, repeater solutions, and accessories across nine industries, from construction and manufacturing to healthcare and fire rescue. All products meet FCC and CE certification standards. In 2025, Retevis expanded its hazardous-area portfolio with the DMR intrinsically safe radio, the MateTalk E2.
Why the Worksite Determines the Radio
In environments where flammable gases, vapors, or combustible dusts can accumulate, an ordinary industrial walkie talkie is not just unsuitable — its internal electrical arcs and surface heat can become an ignition source. An explosion proof walkie talkie is engineered to prevent ignition from the inside out. Selecting the right two way radio for hazardous environments starts with understanding the specific hazard classification of the area where it will be used, not with comparing feature lists.
Five Points to Check Before You Buy
1. Match the Certification to the Actual Hazard Zone
Hazardous areas are classified by zone — a rating describing how often a flammable atmosphere is likely to be present — and by gas or dust group, which identifies the specific substances involved. Zone 1 means a flammable gas atmosphere is likely during normal operation; Zone 2 means it is unlikely and short-lived if it occurs. Gas groups range from IIA (least demanding) to IIC (most demanding, including hydrogen and acetylene).
The Retevis E1 is an intrinsically safe radio rated for Zone 1 gas areas and Zone 21 dust areas, with IIB gas group coverage including ethylene and town gas. For sites classified as Zone 2 where IIC gases such as hydrogen or acetylene are present, the Retevis E2 offers ATEX and IECEx certification with IIC gas group coverage, built-in GPS, and AES256 encryption. The E2 is rated for Zone 2 only and is not certified for Zone 1. Always confirm the site classification with the facility safety officer and verify that the radio’s certificate markings match the area before purchase.
2. Verify Durability for Dust, Water, and Drops
Hazardous-area work does not happen in clean offices. Chemical plants, grain elevators, pharmaceutical production lines, and fuel transport operations expose equipment to fine dust, moisture, and frequent drops. A radio that fails because of dust infiltration or a cracked casing takes a worker off the communication network — a safety risk in itself.
The E1 carries an IP68 rating: fully dust-tight and submersible to one meter for one hour. Its ABS and PC housing resists impact and abrasion from daily industrial handling. For procurement teams evaluating the best two way radio for industrial sites, durability directly affects replacement costs and communication uptime.
3. Confirm Audio Clarity in High-Noise Environments
Industrial sites are loud. Compressors, conveyor systems, ventilation fans, and processing machinery create ambient noise that masks ordinary radio audio. A radio with weak reception means repeated instructions, misunderstood commands, and delayed responses.
The E1 uses a superheterodyne receiver, which delivers higher sensitivity and stronger channel selectivity than standard architectures, reducing cross-channel interference in facilities dense with metal structures and pipework. In digital mode, the E1 supports both DMR and NXDN protocols with built-in noise cancellation that improves voice clarity in high-noise production areas.
4. Look for Worker Safety Functions Beyond Voice
In hazardous areas, the radio is also a safety device. Solo inspection rounds, confined-space entries, and night shifts create scenarios where a worker may become incapacitated without anyone knowing.
The E1 includes three alarm functions: an emergency alert for manual distress calls, lone worker monitoring that triggers if the radio is inactive beyond a set period, and man-down detection that automatically alarms when a fall or prolonged stillness is detected. These shorten the time between an incident and a response.
5. Check Battery Life Against the Full Shift
A radio that dies halfway through a shift is a liability. Hazardous-area teams often work 8 to 12 hour shifts, with overtime extending use beyond the standard schedule.
The E1 is equipped with a 2450mAh battery delivering over 24.5 hours of continuous use on a single charge, covering double shifts without a mid-shift charge or battery swap.
Self-Check Checklist
Before placing an order, confirm:
- The radio’s zone and gas/dust group certification matches the site classification — verify with the safety officer and check the physical certificate markings.
- The radio carries IP68 or equivalent dust and water protection with an impact-resistant housing.
- The receiver architecture delivers clear audio at the noise levels present in your facility.
- Emergency, lone worker, and man-down alarm functions are included.
- The battery covers your longest planned shift without recharging.
Compliance Reminder
The certification markings printed on the radio itself are the authoritative reference. Product descriptions should align with the physical certificate, but the final decision must be based on the actual device label and the site’s hazard classification. For anyone evaluating a walkie talkie for explosive environments, the certification on the device is non-negotiable. When in doubt, consult a qualified explosion protection specialist.
Where to Learn More
The Retevis E1 is an intrinsically safe radio for gas and dust hazardous areas up to Zone 1 and Zone 21, with DMR and NXDN digital modes, a superheterodyne receiver, triple-alarm worker safety, and over 24.5 hours of battery life per charge. The Retevis E2 extends the lineup with ATEX and IECEx certification, IIC gas coverage, GPS, and AES256 encryption for Zone 2 operations.
Explore the Retevis E1 and E2 product pages, or contact the Retevis team to discuss certification requirements for your site.
