The MS20003-3 reversible humidity indicator card can be used in many different industries. While being about half of the size as the MS20003-2, the MS20003-3 allows an accurate humidity level reading at a glance. The spot color changes from blue to lavender to pink as the humidity level increases, and will return back to blue as humidity level decreases, making it fully reversible and reusable. The MS20003-3 reversible humidity indicator card has an unopened shelf life of 5 years, which will decrease after its storage can is opened.
- Dimensions: 1×1⅝ in
- Card Style: 30-40-50% Spot