... : 1~100, 000lux *Accuracy: ± 4%rgd± 0.5%f. S *Repeatability: ± 2% *The change as temperature change: ... link, http://www.aliexpress.com/store/product/Light-Lux-Meter-AR813A-1-100-000lux-Free-Shipping ... Best wishes, Mr. Andrew Qian /Sales Manager******************************************************************************************************************* Light Lux Meter AR813A,1~100,000lux;ems,dhl, ...