Quick and easy reading of DC and AC current of up to 400A Unlike with multimeters, no circuit interruption required. Ideal for electric enclosures and high amperages in automotive electrical systems.Multimeter functions The device reads voltage, frequency, temperature, capacity and resistance with automatic range selection and come with diode and acoustic continuity testing. In addition, meter allows contact-less voltage testing (NCV).High-contrast 4000 counts display Easily readable display in all light conditions. This model tops any common clamp meters used in badly lit electrical enclosures. Readings of up to 5999 (6000 counts) are always displayed as 4-digit numbers regardless of where the decimal mark is placed.Pressing the Hold button requires only one hand. The Hold button has been placed on the right side of the meter, pressing it just needs your thumb. Always leaves your other hand free.Work area lightingThe meter features a bright built-in LED with a lens that can be turned on to light up the area directly in front of the meter. Anti-slip coatingThe Voltcraft VC-523 stays where it has been placed. No accidental sliding off slanted surfaces thanks to an anti-slip rubber-coating.Compact and robust The shock-proof device features a composite enclosure including a protective rubber layer. And the rubber-coating also provides lots of grip. Prepped for PFPSsThe enclosure features a standard thread that enables attachment to straps or safety harnesses. This prevents the tool from dropping when working at heights.Temperature reading includedThe clamp meter comes with a temperature reading function using K-type thermocouple probes. The included air temperature sensor can be swapped with any Voltcraft K-type thermocouple probe to determine the temperature of as mixtures, fluids or surfaces (760°C max).True RMS readings ensure accuracy True RMS measurement enables reading of asymmetrical voltage and amperage with wave forms other than a sinus. Asymmetric voltages are very common in various types of dimmers, speed limiters, synchonised switches, pulse-type chargers, or scale model speed controllers. Which means that in these cases conventional meters displaying average readings are prone to large measurement errors.Factory calibration ensures accurate readings Calibration according to manufacturer standards is part of Voltcraft Quality Assurance. This ensures high quality products and compliance with tolerance limits as outlined in the user manual. This does not include certification.