1. The AT59 High Accuracy UVB Tester is specifically designed for precise measurement of UVB luminosity, ensuring your reptiles receive the optimal light they need for their health 2. This test instrument boasts a measuring range of 0-1999uw/c, allowing you to accurately gauge UVB levels in various environments 3. With a response time of less than or equal to 0.5 seconds, the AT59 High Accuracy UVB Tester delivers immediate results 4. Featuring a 2-inch screen plastic construction, this UVB measurement tool is both reliable and easy to use 5. Each purchase includes 1 x UVB Meter, providing you with everything needed to start monitoring your reptile’s UVB exposure right away