Ht Instruments Ht309: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources
HT Instruments HT309 Information the information about the HT Instruments HT309: Introduction The HT309 is a digital light meter used to measure illuminance up to 400,000 lux through a silicon photodiode sensor. It is compliant with the IES requirements for measuring the brightness of all light sources that emit visible light. This means that it can be used to measure the brightness of LED, incandescent, fluorescent, and other types of light bulbs.