The Velleman HPS40 Personal Scope Oscilloscope Isolated Rs232 Handheld has a number of benefits that make it an excellent choice for professionals. The oscilloscope has a high sampling rate of 40 MSa/s, which means that you can measure waveforms with high accuracy and precision. The device is also very easy to use and operate, making it an excellent choice for those who are new to the field of waveforms. The device is perfect for professionals who require a precise and accurate measurement of waveforms on the go.. I plugged it in and it came right on. Cord case manual and 2 probes. Shipping in lower 48