• Usually ships in 1-2 weeks



  • AC current range: 60A, 300A
  • Accuracy: ±2%
  • Non-Contact Voltage (NCV) 80 to 600V
  • 0.8" (22mm) jaw size
  • Unique Smart Auto Sense feature
  • Built-in Non-Contact Voltage (NCV) detector
  • Inrush current measurement
  • 6000 count backlit LCD display

What's in the Box

  • Carrying case
  • LR44 batteries


The Extech MA140 Mini Clamp Meters are True RMS meters that provide accurate readings of noisy, distorted or non-sinusoidal waveforms. The compact 0.8" (22mm) jaw size accommodates conductors up to 300MCM and allows measurements in tight locations. Built-in Non-Contact Voltage (NCV) Detector allows for quick detection of live voltage. The MA140 ships complete with carrying case and two LR44 batteries.