"THE REDINGTON MODEL 732 PROVIDES A DC HOUR METER WITH AN OPERATING RANGE OF 10-80VDC. MODELS ARE PROTECTED FOR 2 TIMES BATTERY VOLTAGE AND/OR REVERSE POLARITY. MODELS ARE AVAILABLE IN THE STANDARD INDUSTRY HOUSINGS, 3-HOLE ROUND, FLUSH-RECTANGULAR, FLUSH-ROUND AND 2-HOLE RECTANGULAR. A STIRRUP AND CUP MOUNT ARE AVAILABLE FOR APPLICATIONS WHERE HIGH SHOCK AND VIBRATION EXIST. ITS QUARTZ TIME BASE INSURES ACCURATE LONG-TERM TIME KEEPING. THE TOTALLY SEALED CASE PROTECTS AGAINST THE ENVIRONMENT AND PROVIDES YEARS OF RELIABLE SERVICE. MOST MODELS ARE NEMA 4X, 12 RATED WHEN MOUNTED WITH OPTIONAL GASKET."