Extech MA440 Clamp Meter with Non-Contact Voltage Detector; 400A AC; 1.2" Jaw Size; Fits up to 500MCM; Relative Mode for Capacitance, Data Hold, Auto Power Off and Low Battery Indicator

SKU: 01MA440

  • Sale
  • Regular price $52.49

The MA440 Series meters are fully loaded with multimeter functions and a built-in non-contact voltage (NCV) detector to meet your application needs!

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 Temperature measurements.


  • 1.2" (30mm) jaw size fits conductors up to 500MCM
  • Built-In Non-Contact Voltage Detector (NCV)
  • Large backlit LCD display
  • Functions include: NCV, AC/DC Voltage, AC Current, Resistance, Capacitance, Frequency, Diode Test, Continuity
  • Relative mode for Capacitance, Data Hold, Auto Power Off and Low Battery Indicator
  • 2 years warranty


  • AC Current: 400.0A
  • AC Current Basic Accuracy: ±2.0%
  • AC Current Max Resolution: 1mA
  • AC Voltage: 600V
  • AC Voltage Basic Accuracy: ±1.2%
  • AC Voltage Max Resolution: 1mV
  • Capacitance: 100µF
  • Capacitance Max Resolution: 0.01nF
  • Continuity: Yes
  • DC Voltage: 600V
  • DC Voltage Basic Accuracy: ±0.8%
  • DC Voltage Max Resolution: 0.1mV
  • Diode Test: Yes
  • Frequency: 1MHz
  • Frequency Max Resolution: 0.01Hz
  • Jaw Size: 1.2" (30mm), conductors up to 500MCM
  • Non-Contact Voltage (NCV) Detector: 100 to 600VAC
  • Resistance: 40MΩ
  • Resistance Max Resolution: 0.1Ω
  • True RMS: Yes