This product requires 1 product_specific batteries/batteries, which are already included Large white backlit LED display for working in low light areas/ Resistance and continuity/ Min/Max/Medium to record signal fluctuations/ CAT III 600V Safety Rating / Safety Compliance / All inputs are protected according to CE, IEN61010-1, CAT III 600V. Listed on UL, CSA, TÜV and VDE, Weight: 1.212542441 pounds, Manufacturer: Fluke