Tenmars TM-201 Measuring Lights Source Include All Visible Range LUX/FC Light  Meter  Product Description:  - 3 digits LCD with maximum reading 2000. - Overload indication. - Low battery indication. - According to JISC1609:1993 and CNS 5119 general A class specifications. - Spectral response close to CIE luminous spectral efficiency. - Measuring intensities of illumination in unit of Lux or Foot-candle. - Measuring lights source include all visible range. - Length of wire for light sensor: approximately 1.5M. - Cosine angular corrected.  -The batteries not included package  Application:  - Warehouses, factories, office buildings, restaurants, schools, libraries, hospitals, building security and parking stations.  Specification:           Model     TM-201     TM-202           Data hold     V     V           DC analog output          V           Max/ Min /AVG hold          V           Max hold     V                Zero adjustment     V     V                        Sensor     Silicon photodiode and filter           Measuring range     200, 2000, 20000, 200000 Lux 20,200, 2000, 20000 Foot-candle           Accuracy     +/- 3% (Calibrated to standard incandescent lamp 2856º K) +/- 8% (other visible light source TM-201) +/- 6% (other visible light source TM-202)           Angle deviation from cosine characteristics     30º     +/- 2%           60º     +/- 6%           80º     +/- 25%         Dimension:           Meter size (LxWxH)     130x55x38mm           Sensor size (LxWxH)     80x55x25mm           Weight (including battery)     250g                   H.Q.S