And check out daily report on UV forecast for 30 metropolitan areas in the US . Simply hold your glasses over a portion of the sensor strip out in the Sun. If your glasses have UV protection the sensor strip will stay light purple under the glasses and turn dark purple in the unprotected regions after 45-90 minutes. There are many other tests you can perform. You can also check the window glass in your home, auto and business.
Artists can use it to see if the glass covering their artwork from damage is UV protected.
With the SunFun UV Sun Meter, you'll know when you've had too much fun in the Sun. Copyright 1994-2001 SunFun Corporation, All Rights Reserved .