How about Wisesorb color changing silica gel?
Indicating silica gel utilize premium quality raw material. The strong moisture absorption ability allow beads to begin to change to different colors at 20%RH-50%RH and will complete changing colors to pink. When you find the beads begin to change color, it does not mean the beads saturated with moisture and the beads will continue to absorb the moisture until 50%RH. Please check the silica gel beads periodically which can be reactivated indefinitely.
What is 3A Molecular Sieve?
3A molecular sieve desiccant is a type of compound aluminosilicate desiccant whose effective pore size is 0.3nm. It is mainly used to absorb water and does not absorb and molecular larger than 0.3nm. Its application characteristics in industrial use are: rapid absorption seed, a mass of reusable times, strong anti-crash strength, and strong anti-pollution ability, which improves the use effectiveness of molecular sieve and extends its service life.
How about Wisesorb color changing desiccant canister?
Wisesorb tin can dehumidifier is perfect for your new gun safe to remove moisture. Removes moisture from gun vaults or enclosed spaces . This canister of silica gel is reusable, just place it in the oven for a 3 hours at 250°F and it will recharge it back to new. Recommend taking the cap off to protect the clear plastic window in the cap first. The beads inside will change color to indicate when it needs "recharged". Good product if you don’t have internal outlets in your vault for a "plug in" dehumidifier.
