Mobile digital light me HT309 is digital light meters used to measure illuminance up to 20kLux (HT307) and 400kLux (HT309) through a silicon photodiode sensor. Model HT309 also allows measuring illuminance of LED sources with various colours by setting the relevant correction factors, further to measuring luminous intensity (expressed in Candles).
| Measuring range | 0.01÷400klux 0.01÷40kFc |
| Measurement of illuminance in Lux/Fc | |
| Measurement of LED sources’ illuminance | |
| Luminous intensity measurement (Cd) | |
| Internal memory for measured data saving | |
| Data HOLD |
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