LS330 illuminance meter is a versatile inst ent designed with a sensor. The illuminance meter is used for measuring Lux, UV index, flicker frequency, standard deviation of color matching (SDCM), color rendering index (), correlated color temperature (CCT), blue light hazard ratio, temperature, and humidity in scenarios such as lamps and lanterns lighting, outdoor lighting, greenhouse lighting, and stage lighting. meter digital also can display the curve, which helps identify the type of lighting fixture. 1. Illuminance Wavelength Range: 400nm - 700nm 2. Illuminance Wavelength Interval: 10nm 3. Illuminance Measurement Range: 0 - 1000000 Lx 4. Illuminance Resolution: 0.1 Lx 5. Illuminance Measurement Accuracy: less than equal (3%H + 2 Lx) (H is the standard value, calibrated under CIE standard A light source) 6. Illuminance Unit Options: Lx (default), FC 7. Correlated Color Temperature Measurement Range: 1000 - 100000K 8. UV Index Measurement Range: 0.0 - 15.0 9. Flicker Frequency Measurement Range: 10 - 500 Hz 10. Temperature Measurement Accuracy: 0.5 11. Humidity Measurement Accuracy: 4%RH 12. Response Time: Less than 0.7 seconds 13. Test Aperture Diameter: 21mm 14. Operating Environment: Temperature 0 - 40, Humidity Less than 85%RH Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Blue Material:ABS Package Contents: 1 * Illuminance Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.