Product OverviewThe Mastech MS2138 is a versatile, auto-ranging digital AC/DC clamp meter designed for professionals who require high precision in a compact, ergonomic package. It features True RMS measurement, which is essential for capturing accurate readings on non-sinusoidal waveforms, making it an excellent tool for complex industrial, automotive, and HVAC electrical environments. Its slim, lightweight design makes it particularly well-suited for accessing cramped wiring in dense electrical panels.Key FeaturesTrue RMS Sensing: Provides accurate measurements for both AC voltage and current, even in the presence of distorted waveforms, ensuring reliability in modern electronic environments.Comprehensive Diagnostics: Beyond current, it measures AC/DC voltage, resistance, capacitance, frequency, and duty cycle, offering the functionality of a full-featured multimeter in a clamp form factor.Non-Contact Voltage (NCV): Integrated NCV detection allows for safe, quick identification of live AC voltage without needing to make physical contact with the circuit.User-Friendly Utilities: Equipped with a backlit LCD display and a built-in flashlight, allowing for easy operation in low-light conditions. It also includes "Relative" mode for comparing readings, Data Hold, and an auto-power-off function.Ergonomic Design: Features a jaw opening of approximately 26mm, optimized for getting into tight spaces where larger clamp meters cannot reach.Safety Rating: Compliant with IEC61010-1 standards, rated for CAT III 600V, ensuring safety during standard industrial and commercial troubleshooting tasks.Technical SpecificationsFeatureSpecificationBrandMastechModelMS2138AC/DC Current40A / 400AAC/DC Voltage4V / 40V / 400V / 600VResistance400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩCapacitance4nF / 40nF / 400nF / 4μF / 40μF / 400μF / 4mFFrequency10Hz – 10MHzDisplay4000-count LCDSafety StandardIEC61010-1 CAT. III 600VJaw Opening26 mmPower Source2 x 1.5V (AAA) BatteriesDimensions / Weight218 x 75 x 35 mm / Approx. 239gSEO KeywordsMastech MS2138, AC/DC Clamp Meter, True RMS Clamp Meter, Digital Clamp Meter, Mastech MS2138 Specs, Industrial Electrical Tester, 400A Clamp Meter, HVAC Diagnostic Tool, Non-contact Voltage Detection.
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