This is a Cobalt Chloride Free Color-Change Reversible Humidity Indicator Card that has 6 indicating spots (10/20/30/40/50/60% RH), they change from Brown (dry) to Pale Green (humid). This card complies with MIL-1-8835. A great tool to assist you in keeping your valuables protected!
|Manu. Part #||HIC6DOTCOFREE|
|Dimension||4 1/8" x 2"|