The compact Extech 380942 is a 30 A mini AC/DC clamp meter. The clamp meter has a remarkable 0.1 mA resolution (AC), very low current sensitivity and a small diameter jaw designed to reach into small areas. The 30 A range with 0.1 mA (AC) and 1 mA (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.