The UV testing card is a reliable tool designed to quickly and effectively test UVA radiation levels in various environments. Easy to use, it is suitable for settings such as homes, offices, hotels, and hospitals, helping ensure a safe and healthy environment. Features Material: Paper Size: 7.00 x 2.10 x 0.20 cm / 2.75 x 0.83 x 0.08 in Provides sufficient quantity for personal use and sharing with family or friends Wide range of applications; adequate supply meets daily usage and replacement needs Designed to test the effectiveness of UV disinfection; simply place the card in the area being tested and wait a few seconds Compact, lightweight, and portable design saves space and allows convenient placement anywhere Compatible with common UV/UVA devices Package List 20 x UV testing cards