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The compact Extech 380942 is a 30A mini AC/DC clamp meter with a remarkable 0.1mA resolution (AC), very low-current sensitivity, and small diameter jaw designed to reach into small areas. The 30A range with 0.1mA (AC) and 1mA (DC) resolution is optimized for finding problems where very low current variances would be missed by standard clamp meters. This mini clamp meter is useful for troubleshooting tasks in plant maintenance, electrical, HVAC, and telecom work, as well as residential electrical, fleet maintenance, marine, and motorcycle repairs.
It can be very difficult to make accurate current and voltage readings in industrial and commercial applications when electronic devices are present. Fluorescent lights, motor drives, computer power supplies, and other electronic systems can distort the AC waveform, making it hard for averaging meters to get an accurate read. True RMS uses a more advanced formula to adjust for this kind of distortion.The Data Hold function freezes the display while the Min/Max function tracks and displays minimum and maximum values – useful for blind measurements and start-up draw. The Zero function makes it easy to perform relative measurements. The 4-digit (4,000-count) readout is easy to read and a 40 segment bargraph helps simulate an analog display, better illustrating swings in readings. Whether you are checking amp draws on commercial electrical circuit or troubleshooting a truck’s alternator, the small 0.9" (23mm) jaw opening is compact enough to fit in tight locations like engine bays.
Measuring 7.2 x 2.5 x 1.4" (H x W x D), this CAT III-rated True RMS mini clamp meter comes with test leads, two AAA batteries, soft carrying case, and user manual. NIST certification is also available for this product.
Best thing going for measuring low current like I have to do all the time...I wish it was yellow, I have lost three already in the last few years. On my fourth one.Published 19 days ago by NEIL W. RUSS
Works Great! Measures my DC Low amp readings where no other meter will! Pretty Accurate compared to a few other meters I have.Published 2 months ago by R. Crisler
Works very well. However when the batteries are low, it gives strange indications even though there was no low battery indications. It's well worth the money.Published 10 months ago by James B Freal
Item arrived quickly and works well. Description was accurate.Published 11 months ago by NYSDOT R1 Traffic
Unfortunately this meter is not a good multimeter, because it cannot measure resistance.Published 11 months ago by Bernardo
Much better in tight places ..
I do believe though that the thickness of the distal <far> end of the clamp 'halves' could be made even smaller .. Read more