190 Series II combines the power of a high-performance oscilloscope, multimeter and paperless recorder in an easy to use test tool. It extends your arsenal of troubleshooting capabilities by visually inspecting signals amplitude, time, shape, and disturbance or distortion characteristics. Its safety rating, according to IEC 61010 standard, is 1000 V CAT III/ 600 V CAT IV, making it possible to safely measure from mV to 1000 V.