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Product Description
Digital Lux Meter WT81 / WT81B
The digital luxmeter is a professional instrument for measuring illumination and brightness, which can be used in light intensity measurement engineering, quality control, illness prevention and treatment and measurement of light intensity in all kinds of environments such as factories, schools, offices, transportation routes, families, etc.
| Measuring function | Illumination and temperature, difference value, max value, min value of illumination | |
| Main parts of photometer head | Photodiode+cosines corrector+correction filter | |
| Temperature probe | NTC thermistor | |
| Illuminance measuring range | Total measuring range:0~200,000 Lux,into four ranges | |
| ×1：0 ~ 199.9 Lux | ||
| ×10：200 ~ 1999.9Lux | ||
| ×100：2000 ~ 19999.9Lux | ||
| ×1000：20000 ~200000Lux | ||
| Temperature measuring range | -9.9℃ ~ 49.9℃ | |
| Illuminance accuracy | ±3%rdg (below 10000 Lux); | |
| ±4%rdg (above 10000 Lux) | ||
| Temperature accuracy | ±1.0 ℃ | |
| Units of illuminance and temperature | Four combinations of units are available. | |
| Lux/℃ | ||
| Lux/℉ | ||
| FC/℃ | ||
| FC/℉ | ||
| Storage of illumination data | Automatic storage | Max number of data groups is 1000, and storage cycle is set by APP. |
| Manual storage | Max number of data groups is 67, and whether to store data is deceived by manual operation. | |
| Operating temperature/ humidity | 0 ~ 40℃，10 ~ 90%RH | |
| Storage temperature/ humidity | -10 ~ 50℃，10 ~ 90%RH | |
| LCD screen update | 2 times/s | |
| Power source | 3* 1.5V AAA batteries | |
| Battery life | About 200 hours(consecutive working time without turning on Bluetooth and backlight) | |
What's in the Box
Warranty
Highlights
Product Description
Digital Lux Meter WT81 / WT81B
The digital luxmeter is a professional instrument for measuring illumination and brightness, which can be used in light intensity measurement engineering, quality control, illness prevention and treatment and measurement of light intensity in all kinds of environments such as factories, schools, offices, transportation routes, families, etc.
| Measuring function | Illumination and temperature, difference value, max value, min value of illumination | |
| Main parts of photometer head | Photodiode+cosines corrector+correction filter | |
| Temperature probe | NTC thermistor | |
| Illuminance measuring range | Total measuring range:0~200,000 Lux,into four ranges | |
| ×1：0 ~ 199.9 Lux | ||
| ×10：200 ~ 1999.9Lux | ||
| ×100：2000 ~ 19999.9Lux | ||
| ×1000：20000 ~200000Lux | ||
| Temperature measuring range | -9.9℃ ~ 49.9℃ | |
| Illuminance accuracy | ±3%rdg (below 10000 Lux); | |
| ±4%rdg (above 10000 Lux) | ||
| Temperature accuracy | ±1.0 ℃ | |
| Units of illuminance and temperature | Four combinations of units are available. | |
| Lux/℃ | ||
| Lux/℉ | ||
| FC/℃ | ||
| FC/℉ | ||
| Storage of illumination data | Automatic storage | Max number of data groups is 1000, and storage cycle is set by APP. |
| Manual storage | Max number of data groups is 67, and whether to store data is deceived by manual operation. | |
| Operating temperature/ humidity | 0 ~ 40℃，10 ~ 90%RH | |
| Storage temperature/ humidity | -10 ~ 50℃，10 ~ 90%RH | |
| LCD screen update | 2 times/s | |
| Power source | 3* 1.5V AAA batteries | |
| Battery life | About 200 hours(consecutive working time without turning on Bluetooth and backlight) | |
What's in the Box
Warranty
