Rugged cases for protecting Fluke handheld test tools in extreme work environments. Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof IP Rating: IP67: Case Material: Polypropylene copolymer Automatic purge valve for quick equalization after changes in atmospheric pressure CXT80: For use with Fluke 80 Series, 187//189 and model 27 digital multimeters CXT170: For use with Fluke 170 Series, 114/115/116/117, 77III, and 77IV digital multimeters CXT280: For use with Fluke 287 or 289 True-RMS multimeters Dimensions and weight 270 x 246 x 124 mm: 1.25 kg