Digital Lux Meter

Excellent characteristics in Visible region relative spectral response. In the JIS standard, the system of evaluating the characteristics of the visible region relative spectral response is adopted in order to bring the relative spectral response of the lux meter much closer to this ideal.
Color correction factor setting function:
The 510 series lux meter measures the intensity of illumination more accurately because its sensitivity approximates to the standard spectral luminous efficiency which is the same sensitivity as the human eye. However, since spectral characteristics differ depending on the light source types, a subtle indication error occurs. The 51021 lux meter incorporates a function to correct this error. (Factor fixed: 8 types; arbitrary factor setting: 21 types)
Timer hold function:
This function is added so that the shadow of the user or reflections from clothes do not affect the measuring intensity of illumination. Like an selftimer function of a camera, a measured value is held five seconds after the switch has been pressed. The 51021 lux meter can be set arbitrarily from 1 to 999 seconds.
Light source luminous intensity measurement function:
The luminous intensity (candela) can be measured easily by setting the distance from the light source (0.01 to 99.99m).