The Fluke ScopeMeter 125 is a handheld electrical test device that combines a 40MHz, two-channel digital oscilloscope for viewing electrical signals with a true RMS, manual- and auto-ranging digital multimeter on each input for measuring AC and DC voltage to 1,250V, frequency to 70MHz, current to 400 amp, resistance to 30MΩ, capacitance to 500μF, rotational speed to 50kRPM, and duty cycle from 2% to 98%. The oscilloscope has a real-time sample rate of 25MS/s and a record length of 512 points per channel for acquiring waveforms. Cursor and automatic measurement parameters allow an in-depth analysis of waveforms, and edge and video triggers allow isolation of specific signals. The oscilloscope's advanced automatic triggering recognizes signal patterns and automatically optimizes triggering, timebase and amplitude settings. It has an optical port for attaching a Fluke ITP120 probe (sold separately) for external triggering. To aid debugging, the bus health mode validates the quality of electrical signals on industrial buses and networks. The 5,000-count, true RMS (root mean square) multimeter provides accurate readings when measuring linear or non-linear loads, regardless of waveform. It has two ranging modes: manual, which allows the user to select the operating range, and auto, which automatically selects the appropriate operating range. The meter can measure power for single phase and balanced three-phase systems, displaying the total power (watts), apparent power (VA), reactive power (VAR), and the power factor (PF) to determine how efficiently an installation uses power. In the harmonics mode, it graphs harmonics to the 33^rd order to determine the quality of power. The relative function allows a measurement to be set as a reference value and displays subsequent measurements as a positive or negative deviation from that value, the touch-hold mode captures a stable reading, and the data-hold function freezes a reading on the display t