This Digital Multimeter is great for troubleshooting small DIY projects and electronics around the home. Use this handy device to check if batteries, fuses and extension cords are still working, if your car battery is charging as it should, if home alarms and security systems are wired up correctly, or just to figure out why a toaster or blender has stopped functioning. The continuity detection function emits beeps when current flow is detected, allowing you to detect short circuits and wiring faults. Obtaining measurements and polarity information is also quick with the large, clear LCD display. With replaceable overcurrent fuses and fully insulated test leads, you’ll be suitably protected while you work.