Key Safe Wall Mounted Police Approved Key Lock Box Outdoor with SentrySafe Fireproof Safe Box with Key Lock, Chest 0.25 cu. ft., Black Key Safe Wall Mounted, Key Lock Box Outdoor, Key Box with 4 Digit iGadgitz Home U7247 Wall Mounted Outdoor 4 Digit Combination Key Lock sentrysafe fireproof safe box with key lock eBay. Brand Master Lock Lock Type Electronic Combination Lock. Key Color Black Special Feature Fireproof. Waterproof Water Resistance Level Waterproof Large capacity key lock box stores up to 5 house keys; Resettable 4 digit combination provides security Fireproof safe protects valuables from heat up to 1700?? F for 1 hour during a fire Waterproof safe keeps contents dry while submerged in 8 inches of water for 24 hours Digital keypad and secondary lock key provide dual security options Spacious 1. 23 cubic foot interior with LED lighting to easily organize valuables