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The Extech MA220 400 Amp AC/DC Clamp Meter features a 0.9" (23mm) jaw size accommodates conductors up to 300MCM. Continuity beeper and Diode test. Data Hold, Max Hold. Autoranging with Auto Power Off. 2000 count LCD display. Specifications. AC Current: 40, 400A (0.001A Maximum Resolution). AC Current Basic accuracy: ±3%. DC Current: 40, 400A (0.001A Maximum Resolution). DC Current Basic accuracy: ±2.5%. DC Voltage: 400mV, 4V, 40V, 400V, 600V (0.1mV Maximum Resolution). DC Voltage Basic accuracy: ±1.5%. AC Voltage: 400mV, 4V, 40V, 400V, 600V (0.1mV Maximum Resolution). AC Voltage Basic accuracy: ±2%. Resistance: 400, 4k, 40k, 400k, 4M, 40Mohm (0.1 ohm Maximum Resolution). Capacitance: 40nF, 400nF, 4µF, 40µF, 100µF (0.01nF Maximum Resolution). Frequency: 5Hz, 50Hz, 500Hz, 5kHz, 150kHz (0.001Hz Maximum Resolution). Temperature: -58 to 1830°F (-50 to 1000°C) (1° Maximum Resolution). Duty Cycle: 0.5 to 99.0% (0.1% Maximum Resolution). Continuity Beeper: <= 30 ohms.
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