Features: Professional light meter with measurement functions, accurately evaluates light source color temperature and multiple color rendering index for precise lighting analysis. Features advanced spectral sensors technology matching human eye response (Vλ function) and 0.01 1,000,000 measurement ranging for laboratory grade accuracy in diverse environment. Essential tool for electricians, industrial inspectors, and photography professional requiring lighting assessment and compliance verification. Ideal for factory floor lighting audits, stage equipment calibration, and home lighting optimization projects requiring flicker detection and spectral analysis. ABS light meter delivers ±2% measurement stability, backed by calibration certification for professional reliability. Specifications: Name: LS330 spectral illuminometer Specification: LS330 Measurement ranging: 0-1000000Lux Resolution: 0.1Lux Accuracy: ±3% Sampling rate: 1 time/second Illuminance measurement ranging: 0~100000Lux Illuminance resolution: 0.1Lux Related color temperature measurement ranging: 1000~100000K Flash frequency measurement ranging: 10~500HZ Temperature measurement accuracy: ±0.5°C Test light hole diameter: Φ21mm Package Includes: 1pcs Light Measurement Device note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.