iU2 is a precise meter that measures ultraviolet UVA and UVB radiation. Applications include: Testing Window Film / Tint Transmission; Monitoring Low Level UV from Household Lamps; Testing Ground level UV From Stadium Lighting; Testing Ground level UV From Stage and Theater Lighting; Measuring Outdoor UV Including Shady Area UV; Monitoring UVA Lamp Intensity and Aging; Monitoring UV LED (<360 nm); Testing UVA In Industrial Glue Curing. MATERIALS SUPPLIED (1)Santacary iU2 Ultraviolet AB Light Meter (2)Protector Bag (3)English User Manual (4)Two AAA Alkaline Batteries.