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  • 1.2in (30mm) jaw size
  • Built-In Non-Contact Voltage Detector (NCV)
  • Large backlit LCD display
  • Measuring ranges:
    • AC current: 400.0A (1mA)
    • DC voltage: 600V (0.1mV)
    • AC voltage: 600V (1mV)
    • DC current: 400.0A (MA445)
    • Resistance: 40MΩ (0.1Ω)
    • Capacitance: 100µF (MA440) / 40mF (MA443/5)
    • Frequency: 1MHz (0.01Hz)
  • True RMS (MA443/MA445)

What's in the Box

  • Test leads
  • Three AAA batteries
  • Pouch

The Extech MA440 AC Clamp Meter has three models to choose from, with or without True RMS and AC or AC/DC Current functions. Choose True RMS model for accurate readings of non-sinusoidal waveforms, model with DC Current function for automotive applications, or model with Type K function when applications require Temperture measurements. The MA440 Series pocket-sized meters are fully loaded with multimeter functions and built-in non-contact voltage (NCV) detector to meet your application needs!