In addition to the standard functions youve come to expect from a high quality digital multimeter, this unit also offers improved accuracy, expanded memory, new triggering capabilities, extraordinary sampling/transferring speed and built-in USB and GPIB connectivity. The 6 1/2 digit M3511A DMM is designed with 7 1/2 digit techniques to provide user a stable, faster and accurate measurement. The M3511A is engineered with to reach high performance: Both of the sampling rate and the data transfer rate can achieve 2000 readings per second.