SunKnown UV LIGHT METER DOES NOT measure UV light emitted by fluorescent or LED lights. It detects solar UVA (320-400 nm) and UVB (290-320 nm). It DOES NOT measure UVC. SunKnown UV LIGHT METER IMPROVES THE QUALITY OF YOUR LIFE by measuring the strength of the sun’s UV rays on a given day so you can decide what protection you need to wear that day and how long it is safe to stay outdoor.

THIS SOLAR UV LIGHT PHOTOMETER calculates the UV Index using its algorithm, combining both solar UVA and UVB in a single measurement. The UV index measured by SunKnown UV detector may or may not match the EPA Index in your specific location. Rather it is designed for daily consumer's use to measure the strength of the sun's radiations relative to different hours of the day, or relative to different days, same hour.

THIS UV RAY DETECTOR CAN measure each day’s risk of getting sunburned or exposed to high levels of cancer-causing UV radiations, and allows you to adjust your outdoor living behavior accordingly. THIS PRODUCT DOES NOT MEASURE UV LIGHT OF TANNING BEDS.

WITH THIS HANDHELD ULTRAVIOLET LIGHT STRENGTH TESTER YOU CAN CHECK THE EFFICIENCY OF SUN PROTECTION provided by your sunglasses, car or window glasses, hats, clothing and window’s sunscreen or UV filters.

SunKnown SOLAR LIGHT METER IS EASY TO OPERATE - Press the “UV Check” button to read the UV index (0 to 12+, at 0.5 steps) by pointing the UV light sensor toward the sun.

Main Features:

• Measures single UV index for UV radiation emitted by the sun (but not UVC). The UV index is shown at 0.5 increments from 0-12.
• This device CANNOT measure UV light emitted by fluorescent or LED lights.
• Ergonomically designed to fit in your palm.
• Easy to operate: Press the “UV Check” button to read the index by pointing the UV sensor directly toward the sun.
• Battery included: two 1.5V button cells (L1154/ LR44/ AG13)
• Dimension: L 3.8 x W 2.3 x D 0.8 inches