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380947 – 400A True RMS AC/DC Mini Clamp Meter

The compact Extech 380947 is a 400 Amp True RMS mini clamp meter. This meter has a small diameter jaw designed to reach in small areas while providing 1mA resolution and very low-current sensitivity. This mini clamp meter is useful for current and frequency related troubleshooting in plant maintenance, electrical, HVAC, and telecom work, as well as home electrical, fleet maintenance, marine, and motorcycle repairs. Comes with battery and manual.

  • 0.9″ (23mm) jaw opening
  • True RMS measurements with 1mA AC resolution
  • Non-contact Frequency measurements to 10kHz through the clamp jaws
  • Fast 40 segment bargraph
  • One touch Auto Zero
  • Min/Max, Data hold and Auto power off
  • To download the correct user’s manual, please check your product’s serial number (on the back of the unit). A product revision has occurred only if the SN begins with a letter (A, B, etc.)
Specifications Range
True RMS True RMS
Display counts 4000 count LCD
Jaw size/Cable size 0.9″ (23mm); 4/0 AWG
AC Current 4A, 40A, 100A, 400A
DC Current 40A, 400A
Max Resolution AC: 0.001A, DC: 0.01A
Basic ACA Accuracy (% rdg) AC: ±1.5%, DC: ±1.0%
Frequency (Max Res.) 10kHz (0.01Hz)
Data Hold Yes
Min/Max Min/Max
Dimensions/Weight 7×1.8×1.3″ (178x45x32mm)/ 8oz (225g)
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