Engel's MHD13 operates as either a fridge, freezer or warmer with reliable temperature consistency – perfect for transporting temperature-sensitive foods, drinks and medications. The digital controls allow you to select temperature settings between 0ºF and 131ºF, which are displayed on a bright-red LED screen. The unit itself can operate in climates of 14ºF to 113ºF. The MHD13 draws less than 3 amps/hour, and operates on DC power only. FDA certified and registered. 14-qt. capacity. ABS plastic outer casing features a lockable lid. Vibration-resistant for extreme conditions. Manufacturer's two-year warranty. Internal dimensions: 13.75”L x 7.5”W x 7.5”H. External dimensions: 17.5”L x 11.3”W x 14.5”H. Weight: 26 lbs.