HYGROMETER

Moisture control inside your safe prevents rust, corrosion, and long-term damage to firearms and ammunition. The Lockdown Hygrometer monitors humidity levels so you know exactly what conditions your collection faces. Whether you're storing in Sunnyvale or Santa Clara, this compact tool gives you real-time readings. TacticCAL offers FFL transfer in Sunnyvale and the accessories you need for proper firearm care.

Humidity Monitoring for Safe Storage

A hygrometer tells you whether your safe environment stays in the safe zone—typically 30–50% relative humidity. Metal and wood components deteriorate when moisture accumulates, especially in coastal California climates. This Lockdown unit measures 6.9 inches and weighs just over an ounce, fitting easily inside any safe without taking up valuable space. Pair it with dehumidifiers or desiccants for complete climate control. Visit our store or check FFL transfer pricing for details on what we stock. Visit our firearms dealer in Sunnyvale for our full catalog.

Frequently asked questions

How often should I check the hygrometer reading?

Check it monthly or after significant weather changes. Coastal humidity shifts seasonally, so regular monitoring catches problems before rust develops on your firearms or ammunition.

Does this hygrometer work in all safe types?

Yes. It functions in any safe—wall-mounted, floor, or under-bed models. The 6.9-inch size fits standard safe interiors without blocking access to stored items.

What do I need to bring for DROS in California?

Bring a valid California driver's license or ID card, proof of residency, your Firearm Safety Certificate (FSC), and payment for the firearm and transfer fees. TacticCAL is your FFL dealer Cupertino in the Bay Area.