Request InfoInternational Light Technologies, Gilway & International Light Divs.The ILT350 illuminance spectrophotometer from International Light Technologies Inc. is a low-cost, handheld lux and color measurement spectrophotometer with NIST-traceable and ISO 17025-accredited calibration designed for making light measurements in the field. The device offers 3 measurement speeds in the range of 380 to 780 nm, a dynamic range of 20 to 10,000 lux, and data storage for up to 100 readings. It comes with a built-in 12-mm-diameter cosine correcting receptor and magnetic protective cover. 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