Extech MA440 400A AC Clamp Meter with Non-Contact Voltage Detection, True RMS, 4000 Count Display, Continuity Tester, Resistance & Frequency Measurement, Compact Digital Multimeter for Electricians

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Reliable AC Current Measurement - Accurately measures up to 400A AC with a durable clamp design, perfect for electricians, HVAC technicians, and maintenance pros working in demanding environments. Built-In Non-Contact Voltage Detection - Quickly identify live wires without making direct contact. This feature enhances safety and efficiency when troubleshooting outlets, circuits, and electrical panels. True RMS Accuracy for Precision - Delivers reliable readings on both linear and non-linear loads, ensuring accurate measurements even in noisy environments with harmonics and variable frequency drives. Multi-Function Capability - Measures AC current, resistance, frequency, and continuity. Equipped with a 4000-count digital display and data hold function to capture and view readings with ease. Compact, Portable & User-Friendly - Lightweight clamp meter with ergonomic design and easy-to-read backlit display. Fits comfortably in your tool bag, making it an everyday essential for field service work.