Hornady Digital Hygrometer

You cannot fix a humidity problem you cannot see.

Steel corrodes slowly and quietly, and the first sign is usually the damage itself.

Performance Under Pressure: Tracks temperature and humidity inside the safe and holds the high and low readings. You see the swing over time, not just the number in front of you.

Durability and Reliability: Two AAA batteries run it. No cord to route through the wall of a safe and nothing to unplug by accident.

Friction Removal: Mount it with the quick-connect bracket on the interior door or wall, or set it on the fold-out stand. Large touchscreen display, Fahrenheit or Celsius.

Identity Signal: The owners who never lose a gun to rust are the ones who measure. Everyone else is guessing.

Proof and Credibility: You swing the door open, read the high and low at a glance, and know whether your dehumidifier is keeping up or falling behind.

Measure the air and rust never gets a start.