UUL MT30 Auto-Reset Smart Digital Multimetert OverviewModel: 2UUL MT30Purpose: Designed for mobile phone repair, PCB testing, and electronics diagnostics.Key Feature: Features an auto-reset smart digital display and manual rotary selector dial.Display Status: The screen currently reads "OL" (Over Limit/Open Circuit), which typically indicates that the test probes are not connected to a conductive path or the measured resistance is beyond the meter's range