Illuminance meter

Light sensor element Si photodiode with approximated relative luminous efficiency Display Digital display: 4039 full scale Bar graph display: 41-segment display Sampling rate Digital display: Approx. 3 times/sec. Bar graph display: Approx. 30 times/sec. Ranges 400 lx range: 0.1 lx to 403.9 lx 4000 lx range: 1 lx to 4039 lx 40 klx range: 0.01 klx to 40.39 klx 400 klx range: 0.1 klx to 403.9 klx Relative spectral sensitivity Approximating the standard luminous efficiency Power supply LR44 1.5V×2 Size/Mass 117(H)×76(W)×18(D) mm / approx. 120 grams Light sensor probe 84(H)×16(W)×10(D) mm Light sensor probe Approx. 0.9 m