AC/DC Mini Clamp Meter The compact Extech 380941 is a 200A mini AC/DC clamp meter with a small diameter jaw designed to reach in small areas while providing 10mA resolution (DC) and very low-current sensitivity. This mini clamp meter is useful for troubleshooting tasks in plant maintenance, electrical, HVAC, and telecom work, as well as home electrical, fleet maintenance, marine, and motorcycle repairs. Key Functionality The 200A AC rating with 100mA resolution and 40A DC rating with 10mA (DC) resolution is optimized for finding problems where very low current variances would be missed by standard clamp meters. The meter doubles as a DMM with added resistance and frequency functions. Whether you are checking amp draws on commercial electrical circuits or troubleshooting relays on vehicle air conditioning systems, the go-anywhere 0.9" (23mm) jaw opening is compact enough to fit in tight locations.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. 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. Other Features Measuring 7 x 1.75 x 1.25" (H x W x D), this CAT III-rated mini clamp meter comes with test leads, two AAA batteries, soft carrying case, and user manual. NIST certification is also available for this product. Features Overview 200A AC & 40A DC current readingsData Hold, Min/Max and zero modesLow current range & 10mA DC resolution Also reads voltage, resistance & frequencyErgonomic design & small (0.9") jaw opening