Key features
Dimensions: 27.9 by 31.8 by 12.7 cm (11 by 12.5 by 5-Inch)
Buoyancy allows case to float in salt water with 3.6 kg (7.94 lb) load
Includes an automatic purge valve for quick equalization after changes in atmospheric pressure
Features an exclusive 6.4 mm (0.25 in) neoprene O-ring and ABS latches for excellent seal
Product overview: Fluke CXT280 Extreme Case
Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof case.

For use with the following test tools:
Multimeters: 287, 289
Earth Ground Testers: 1621

Accessory Type Extreme Case
For Use With Earth Testers, Multimeters
Universal No
Dimensions 27.9 x 31.8 x 12.7cm
Height 127mm