品牌:TOPCON 拓普康
The Luminace meter BM-9 is a handy-type luminace meter with wide measurement range and excellent operational 
convenience.With newly added 1°measureing field detector ,totally three types of detectors(2°/1°/0.2°)can
handle a wider range of usage.
Feature The BM-9 is portable but multifunction luminance meter. Measurement angle is selectable from 0.2°,1°,2°(Select from 3 measurement angle in purchase) Wide range measurement from 0.01cd/m2 (BM-920D : measurement angel 2°) to 19,990,000cd/m2 (BM-902D : measurement angle 0.2°). Communication with PC via RS-232C cable (Option) Using the extension cable (option) allows the detector and the display unit to be separated for measurement. Keyboard unit allow instrument to calculate the deviation and integration luminance