"ULTRA LOW TEMPERATURE; CHEST TYPE; 500 UNIT CAPACITY; 208-230 VOLT,50/60 HZ; AC THREE PHASE; WITH SEVEN DAY TEMPERATURE RECORDER; AUDIBLE AND VISIBLE ALARM THAT IS BOTH ELECTRICALLY AND BATTERY OPERATED; LOCKING RING FOR PAD LOCKING LID; MEANS OF SECURING TO FLOOR OR SHIP DECK; STORES 500 UNITS OF RED CELLS IN BOXES APPROXIMATELY 7-1/8 BY 5-5/8 BY 1-7/8 IN; FOR USE IN FREEZING AND MAINTAINING RED CELLS,PLASMA,AND PLATELETS"