Battery powered, 12 volt, dc; portable; 5 in. Wide by 7 in. Deep by 5 in. High; built-in rechargeable battery pack capable of 700 miliamp hours; operating up to 7 hours and has 20 percent capacity indication light; supplied w/ 110 volt adapter for operation from 110 volt, 60 hz, ac power source; controlled speed range of 6200-7000 rpm and 60 sec programmed spin time; 4 place rotorhead for 75 mm microcapillary tubes, semiautomatic digital read-out and audible completion signal; includes safety mechanism to prevent operation when lid is open
