Motorola Explosion-Proof Two-Way Radios: Ultimate Safety Communication for Hazardous Environments
Introduction
Motorola Solutions leads the hazardous environment communication market with its ATEX/IECEx certified explosion-proof radios. These intrinsically safe devices combine military-grade durability with advanced digital features, serving industries like oil & gas, mining, chemical plants, and emergency services where explosive atmospheres exist.
Top Models & Technical Specifications
- GP328D+ (Digital/Analog Dual-Mode)

Certifications: Ex ib IIB T4 Gb/Ex ibD 21 T130℃ (China NEPSI), IP68 rated
Key Features:
32 channels with digital/analog auto-switching
121.5dB loud audio with SINC+ noise cancellation
Emergency orange button & fall detection (accelerometer-triggered SOS)
28-hour battery (3-shift operation capable)
Text messaging & GPS tracking
- DGP8550e (Police/Industrial Hybrid)
Standards: PDT/DMR/MPT1327 compatible, IP68 submersible (1.5m/30min)
Advanced Functions:
1000-channel capacity with 5-line color display
GNSS (GPS+GLONASS) & Bluetooth 4.0 LE
Full keyboard for direct text entry
Explosion-proof rating: Ex ib IIC T4 Gb
- XIR P8668i (High-End Digital)

Safety: IP68, ATEX Zone 1/21 certified
Smart Features:
256 channels with AES-256 encryption
Wi-Fi/Bluetooth programming
28-hour smart battery with fuel gauge
Indoor/outdoor positioning system
- MTP8000Ex Series (TETRA Standard)

Industry-Specific Design:
Optimized for oil/gas with -30°C to +60°C operation
20% louder audio than previous gen (140dB peak)
15-hour talk time with high-capacity battery
Comparative Analysis
FeatureGP328D+DGP8550eXIR P8668iMax Channels321000256Battery Life28h18h28hPositioningGPSGPS+GLONASSHybrid GPSEmergency FeaturesFall detectionManual SOSBoth
Application Scenarios
Oil Refineries: DGP8550e’s methane resistance (Ex ib IIC) prevents ignition
Mining: GP328D+’s 121.5dB audio overcomes tunnel echoes
Firefighting: MTP8000Ex’s heat-resistant casing (up to 130°C)
Maintenance Tips
Use only Motorola-approved batteries to maintain safety certifications
Monthly button/port inspection to preserve IP rating
Avoid silicone-based cleaners that may degrade explosion-proof seals
Conclusion
Motorola’s explosion-proof portfolio delivers scenario-specific solutions from basic analog/digital hybrids (GP328D+) to advanced TETRA systems (MTP8000Ex). Their unified design philosophy prioritizes audible clarity, ergonomic safety controls, and uncompromising environmental protection.