HEAVY DUTY SURGE PROTECTION: Offers three mode protection with 1,790 joules and 44,000 Amp surge capacity; rated for 30 Amp and 120 V; supports up to 3,600 W for robust defense EASY PLUG-IN INSTALLATION: Simple plug-in design for quick setup; supports optional EMS-RDS remote digital switch and display for enhanced monitoring INTEGRATED DIGITAL DISPLAY: Scrolls through voltage, current, frequency, and error codes; provides real-time monitoring of RV electrical status DATA LINK CABLES INCLUDED: Comes with one 14 ft and one 3 ft cable; supports EMS-RDS remote digital switch and display connection for EMS-HW30C and EMS-HW50C models DURABLE PERFORMANCE: Built for long-term reliability in extreme conditions; provides uninterrupted surge protection for RV electrical systems; sturdy construction ensures safe operation