JUST WHAT THE DOCTOR ORDERED.THE UNIT WAS INSTALLED IN A 1990 TOYOTA ITASKA MOTORHOME RELACING A DOMECTIC UNIT THAT PROVIDED VERY GOOD SERVICE OVER THE YEARS...THIS NEW UNIT IS VERY SIMPLE TO OPERATE....IT IS LARGER AND WILL SERVE IT'S PURPOSE ON MY FREQUENT ROAD TRAVELS HERE IN THE GOOD OLE USA AND AS WELL AS BAJA, CALIF.