This is a Fluke 77 IV Digital Multimeter, designed for troubleshooting electrical and electronic systems with a CAT IV 600 V / CAT III 1000 V safety rating.
It features a large, easy-to-read display with a bar graph and offers 0.3% DC voltage accuracy.
The meter measures AC/DC voltage and current, resistance, continuity, capacitance, and frequency.
It includes useful modes like Auto Hold, Min/Max recording, and auto-ranging for efficient troubleshooting.