The Extech 380942 is a compact 30A True RMS AC/DC mini clamp meter specifically engineered for precise low-current measurements in tight spaces. With 0.1mA AC resolution and 1mA DC resolution, it excels at detecting small current variances that standard clamp meters would miss, making it ideal for troubleshooting sensitive circuits in plant maintenance, HVAC, telecommunications, and automotive applications.

The meter measures AC current to 30A with ±1.5% accuracy and DC current to 30A with ±2.0% accuracy. AC and DC voltage measurement extends to 400V with 0.1V resolution. The 4000-count LCD display features a fast 40-segment analog bargraph for quick trend indication. A one-touch Auto Zero function simplifies DC current measurements by nulling the display without manual adjustment.

The 23mm (0.9") jaw opening accommodates conductors up to 4/0 AWG. The slim profile and lightweight construction (190g) allow easy access to crowded wiring areas. Additional features include data hold, MIN/MAX recall, and auto power off after 30 minutes to conserve battery life. The meter is CAT III 300V and CAT II 600V safety rated.

The complete package includes test leads, wrist strap, soft carrying case, and two AA batteries.