A digital multimeter can check voltage, continuity and battery charges.The Ideal 61-310 multimeter measures AC/DC voltage, current and resistance . Also it measures audible continuity as well as temperature.A Data Hold feature stores your results for convenience in the field. A built in Low Battery indicator and Auto Power Off function ensures maximum battery life and energy efficiency. Most digital mulitmeters are handy, portable devices that help troubleshoot electrical problems from industrial to household issues. While there are analog readers, digital ones provide a more consistent and reliable reading time and time again. The accuracy of digital multimeters is much more superior to the analog versions.