Spectrum Illuminance Meter 0–1000000Lx 400nm-700nm Digital Luminance Color Temperature Tester 1000-100000K Item Type: Spectrum Illuminance Meter Illuminance Wavelength Range: 400nm-700nm Illuminance Wavelength Interval: 10nm Illuminance Measurement Range: 0-1000000Lx Illuminance Resolution: 0.1Lx Illuminance Measurement Accuracy: ≤±(3%H+2Lx) H as standard value(calibrated under CIE standard A light source) Illuminance Optional Unit: Lx (Default), FC Related Color Temperature Measurement Range: 1000-100000K Related Color Temperature Measurement Accuracy: ±5% UV Index Measurement Range: 0.0-15.0 UV Index Measurement Accuracy: ±0.5 Flicker Frequency Measurement Range: 10-500HZ Flicker Frequency Measurement Accuracy: ±5% Temperature Measurement Range: -20℃-80℃ Temperature Measurement Accuracy: ±0.5℃ Humidity Measurement Range: 0%RH-90%RH Humidity Measurement Accuracy: ±4%RH Response Time: <0.7s Test Light Hole Diameter: Approx. 21mm / 0.83in Display: 240x160 Dot Array LCD Battery: 2 x AA Alkali Dry Battery (not included) Using Environment: Temperature: 0-40℃, Humidity: <85%RH