Product overview: Fluke CXT80 Extreme Case Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof.Key features 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 sealFor use with the following test tools:Multimeters: 27, 83 V, 85 V, 87 V, 187, 189 Process Tools: 724, 725, 726, 789