Built for the Heat. Trusted in the Fireground.
Engineered for extreme environments, the XL Extreme 400P is compliant with NIST Class I–IV heat standards, surviving up to 500°F for 5 minutes and brief exposure to 1700°F. Its reinforced housing, sealed interfaces, and high-temperature-rated materials ensure operation through heat, shock, and immersion.
Every control on the XL Extreme 400P is built for gloved operation. The DTMF keypad, five-way navigation key, and programmable side and top buttons allow easy access to critical features. Dual color displays—front and top—remain sunlight-readable in any environment.
Covering VHF, UHF, and 700/800 MHz bands with optional LTE support, the XL Extreme 400P ensures full-spectrum interoperability. Configuration updates, firmware, and personalities can be managed securely over Wi-Fi or LTE, simplifying fleet management.
The XL Extreme 400P meets or exceeds MIL-STD-810G and TIA-603-D requirements. It’s tested for 3 m drop shock, 5 m water immersion, and IP6X/IPX8 dust and water resistance. It operates from -22°F to 140°F, at altitudes up to 15,000 ft, and stores safely down to -40°F.
With 52-channel GPS/GNSS, P25 Tier 2 and L3Harris In-Band GPS compatibility, and support for Man Down and emergency alerts, the XL Extreme 400P enhances safety in the field.
Extreme Keypad Full — heat-resistant DTMF keypad with integrated navigation cluster and soft keys.
6.6 × 2.5 × 1.7 in (168.0 × 64.0 × 43.7 mm)
14.7 oz (418 g)
Green and Black
The L3Harris XL Extreme 400P is a full-spectrum, mission-grade portable radio purpose-built for the fireground. Combining multiband P25 connectivity, Wi-Fi and LTE management, and proven heat resilience, it delivers communication reliability when conditions are toughest.