Lockdown Vault Hygrometer - Secure Your Firearm with Confidence Managing humidity is critical to protect and preserve the condition of firearms. The Lockdown Hygrometer provides accurate relative humidity readings at a glance. It mounts easily with included fastener and hook/loop. Type: Gun Safe / Storage Security: Lockable Color: Silver Dimensions: Silver Finish: Included Brackets Entry: 2.75\ Firearm: No