The Fluke 377 True RMS clamp meter uses FieldSenseT technology to make faster, safer measurements without touching live wires. The clamp meter allows you to measure voltages and currents accurately. Simply clamp the black test lead to an electrical ground point, place the jaws of the clamp around the conductor, and read the voltage and current readings on the display. 3-phase measurements in quick and easy steps. 3-phase voltage and current measurements in three easy steps. Calculate all phase-to-ground and phase-to-phase values. Measure extremely high AC currents with the iFlex® current sensor. With the included flexible iFlex current sensor, you can measure AC currents up to 2500 A. Measurements with the iFlex current sensor are much easier in control cabinets with tightly packed cables and on conductors with large cross-sections. Easy to read and handle with the included accessories. The 377 Clamp Meter makes your work easier. Once the value measured with FieldSense has stabilized, the display changes color to green. During continuity testing, a bright green screen indicates continuity, allowing you to perform continuity tests even in noisy environments. The 377 Clamp Meter includes:. Fluke 377 FC True RMS Current Clamp Meter. Flexible iFlex current sensor (48 cm). TL224 Silicone Insulated Test Leads. TP175 Adjustable Test Probes. AC285 Ground Clamp (black, 1 piece). TPAK ToolPakT Magnetic Hanger (23 cm). Carrying Case. Quick Start Guide.