The Greenlee DM 510A Multimeter Digital is the perfect instrument for measuring voltage, current resistance, and frequency. The DM 510A features a backlit LCD that can count up to 6,000. The onboard computer can also store your previous data readings for easy comparing. The Greenlee DM 510A Multimeter comes with 2 1.5V AAA batteries, bead temperature probe that can measure as high as 400°F/204°C, and test leads.