User-friendly three button design to measure continuity, resistance and voltage. Voltage automatically detects AC or DC-measures up to 750 V includes both visual and audible continuity indicators up to 25 ?. Resistance range 4000 ?. Auto-hold captures the first stable displayed value. Auto ranging 4000 count LCD display. Self storing leads perfectly spaced for easy measurements of tamperproof outlets. Other features include bright display or back light, low battery indicator and auto power off. Battery door with captive screws for easy battery replacement. Test leads and batteries included IP 67 dust and water proof 9.9 feet or 3 meter drop protection. CAT IV safety rating for 600 V. CAT III safety rating for 750 V.