Bluetooth communication allows remote monitoring of electrical system status using the Southwire Surge Guard Wireless LCD Remote Display (item #118088).The Southwire Surge Guard provides total electrical protection for your 30-amp RV, including protection against wiring issues, low/high voltage and frequency, and elevated ground line current. Ten-second start-up sequence and 128 second fault delay sequence protect compressor motors against damage. A security ring on the cord lets you lock the Surge Guard to prevent theft. Comes with Southwire's Limited Lifetime Warranty with Connected Equipment Coverage. Features• LCD Text Display• Low (136V) Voltage Protection• Low/High Frequency Protection• Open Ground Protection• Line Side Open Neutral Protection• High Neutral Current Protection• Elevated Ground Line Current Protection• Reverse Polarity• Designed for Outside Use• 10-Second Startup DelayRated: 120V, 30A3600 Watts2450 Joules Protects against wiring issues, low/high voltage, & elevated ground line current 10-second start-up sequence 128-second fault delay sequence | Southwire Surge Guard Portable 30-Amp 120-Volt Bluetooth-Capable Surge Protector