Dimensions: 94.5mm x 56mm x 27.5mm Weight: 56g Power Source: CR2032 3V Lithium coin battery x 1 Battery Life: 1000 results Display: Large LCD External Output: RS232 PC interface Memory: 360 Results with time and date Auto electrode inserting detection Auto sample loading detection Auto reaction time count-down Sleep Mode: Power consumption less than 20uA Auto turn-of after one minute without action Temperature warning Operation Condition: 14 degree C - 40 degree C (57.2 degree F - 104 degree F)