Accessories › Damp and rust
Hygrometer
The instrument that tells you whether you had a damp problem in the first place.
Watch outBuy this first. One published owner measurement went from 60–65% down to 44% after a rod was fitted — the number is the point, not the gadget.
What to look for
- Min/max memory, so one glance covers a week
- Readable in a dark cabinet
- Cheap enough to buy before, not after, the dehumidifier
Specification
| Field | Value |
|---|---|
| What it is | Digital, with min/max memory and a readable display |
| Power | battery |
| Price | not sold here — see below |
The problem it solves
Closed steel boxes hold moisture. Documents cockle, blueing spots, oiled steel weeps. Where this shows up →
Who makes this kind of thing inside the EU
- Burg-Wächter — “Security since 1920” by their own page title; broad range of locks and fittings
- Rottner Tresor — Runs its own shop with an accessories section
- BASI — Specialist in locking and security hardware
- Hartmann Tresore — Safes and the fittings that go inside them
- Wertheim — Austria; accessories for their own models
Listed because a supplier inside the EU already holds the product-safety paperwork and names a responsible person — which is why importing the same item directly would cost more in documents than in goods. Sites checked 2026-09-14.