A B Accuracy: +/-0.2% FS , Auto Power Off: Yes , Display: 4 Digit LCD , Function: Peak Hold for Tension and Compression, Hi-Lo Comparator with Indicator, Memory Mode , Interface: USB, RS-232, Analog , Memory: Continuous Memory 1000 Points, Single Memory 100 Points, Standard memory 50 Points and Statistics (Max, Min, Peak, Average and Standard Deviation) , Output Type: USB/RS-232/Analog , Power Source: Rechargeable Ni-Cad Battery or Included AC Adapter/Charger , Sampling Rate: 1000 Hz