Urceri Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer with Range up to 200,000 Lux Luxmeter with 4 Digit Color LCD Screen

At twice per second frequency, it has a high response rate so you can be rest assured to get both fast and quality readings. Accuracy: 3% rdg 8 dgts (10,000 Lux). Photo detector: silicon photodiode with spectral response filter.