The light meter displays the result in Lux or FC units. Large and clear display and simple and intuitive control. Illuminance measurement (LUX)0 ~ 199,900 luxIllumination measurement (FC)0 ~ 18,500 FcAccuracy0 ~ 9999 lux / 0 ~ 999 Fc: ± (4% + 8)≥10000Lux / ≥1000Fc: ± (5% + 10)≥100000Lux / ≥9999Fc: ± (5% + 10)Schedule1 lux (0 ~ 9999 lux)10 lux (≥ 10,000 lux)100 lux (≥ 100,000 lux)1Fc (0 ~ 9999Fc); FC = Lux / 10.7610Fc (≥10,000Fc); FC = Lux / 10.76 Sampling time 0.5 sec Features Overload indicator OL MAX/MIN √ Data retention √ LCD backlight √ Automatic power off √ Low battery indicator √ General features Power 1.5 V battery (R03) x 3 Display 32mm x 26mm Color Red and black Weight 118 g Dimensions 160 mm x 50 mm x 28 mm