Klein Tools' Auto Ranging Multimeter, No. MM500, helps users troubleshoot electrical circuits safely and reliably. It has a totally sealed IP67 dust and waterproof rated case, 10' drop protection and a CAT IV (600V) certification. It measures up to 750 volts AC and DC, resistance and continuity. It has a user-friendly three button functionality, detects AC or DC voltage automatically, and includes both visual and audible continuity indicators. Self-storing leads can be used for quick measurements of tamperproof outlets. Auto-Hold automatically locks readings on the display when measuring in hard to access areas.