UV FASTCHECK STRIPS: Your Quick and Easy UV Dose Tracker Need to know the exact UV exposure your materials are getting? Look no further than UV FASTCHECK STRIPS. These handy, paper-thin indicators give you a clear visual readout of accumulated UV light dosage, making it easy to monitor and control your processes. How it works: Simply expose the strips to UV light. As the UV dose increases, the five distinct color-changing zones will gradually shift from yellow to blue. Each zone represents a specific UV dose range, so you can instantly assess exposure levels without any complicated equipment. Versatile and reliable: UV FASTCHECK STRIPS measure a wide range of UVA/B doses, from 0mJ/cm² to over 5,000mJ (5J)/cm². They're perfect for various applications, including web printing, sheet-fed printing, exposure verification, 3-D curing, and even personal UV exposure monitoring. Improved Specifications UV FASTCHECK STRIPS Color: Red Size: Available in packages of 200 strips (10 sheets of 20 adhesive-backed strips per sheet) Dimensions: 1/2" H x 2-1/8" W (13mm x 54mm) Weight: 8 ounces Country of Origin: USA Shelf Life and Storage: Shelf Life: 12+ months from date of invoice (14-17 months from lot number) Storage: Store in original packaging, away from direct light, excessive heat, and moisture. Keep package flat, not vertical. Ideal storage location: Cool and dry, such as a drawer. Note: While the current shelf life is 12 months, proper storage can extend its usability beyond this period.