Large LCD display with back light,RS 232 output, test at any ... , even upside down, for most metals. Portable hardness tester Features:* Large LCD display with back light* For most metals* Based on the ... , memory. reference, date,time,battery power consumptionDisplay 128 x 64 LCD display with back lightAccuracy+/- 0.5% (at HLD=800)Memory1250 ...