Description Overview GAOTek advanced digital PAR meter indoor tester is the amount of light available for photosynthesis, which is light in the 400 nm to 700 nm wavelength range. PAR changes seasonally and varies depending on the latitude and time of day. Levels are greatest during the summer at midday. Factors that reduce the amount of PAR available to plants include anything that reduces sunlight, such as cloud cover, shading by trees, and buildings. Technical Specifications Customized Support OEM Repeatability ±1 μmol / m² / s Measuring Rate 1 measurement per second Cut-On Wavelength 400 nm ± 10 nm Cut-Off Wavelength 700 nm ± 10 nm Size 4.53 in x 2.36 in x 0.94 in (115 mm x 60 mm x 24 mm) Weight 4.05 oz (115 g) (without batteries)
