DP4401Ex — DMR ATEX Zone 2 with GPS and 28-Hour IMPRES 2 Battery
DMR digital portable with ATEX/IECEx Zone 2 certification for gas and dust environments. 5W UHF output with TDMA dual-slot doubling channel capacity. AES-256 encryption standard. Integrated GPS/GLONASS with man-down accelerometer for autonomous worker safety. IP67 rated with 2,900mAh IMPRES 2 battery delivering 28 hours. Supports Capacity Max trunking for up to 15 sites. 1,500mAh standard battery option provides 19 hours for lighter shifts. Designed for oil rigs, chemical processing plants, and refineries where digital features (text messaging, GPS tracking, trunking) are mandatory and multi-shift battery life is critical.
GP340Ex — Analog ATEX Zone 1 with 16 Channels and 1,800mAh Battery
Analog portable with ATEX/IECEx Zone 1 certification — a higher gas-group safety tier than DP4401Ex's Zone 2. Simple 16-channel UHF/VHF operation with no display and rotary channel selector. 5W output with CTCSS/DCS signaling. 1,800mAh NiMH battery provides 14 hours. MIL-STD-810G certified for shock, vibration, and thermal shock. No digital features — purely push-to-talk voice in the harshest environments. 290g form factor with large tactile controls for gloved-hand operation. Dominant in underground mining, offshore platforms, and fuel depots where Zone 1 certification is legally required and analog simplicity ensures zero-training deployment.
