Tripp Lite Remote Control Module for Tripp Lite PowerVerter Inverters (PV-Series) and Inverter/Chargers (RV-, APS- EMS-Series) (APSRM4) Allows complete remote monitoring and control of PowerVerter inverter (PV-Series) or inverter/charger (RV-, APS- and EMS-Series) up to 50 ft. away One-touch switch between inverter modes Master override capability for complete control Heavy-duty metal construction with LEDs to indicate battery level and inverter mode at a glance Lifetime Limited Warranty