Digital Light Meter Illuminance Tester 200000 Lx Fc Illuminometer Photometer for Testing Item Type: Digital Light Meter Material: ABS Maximum Display: 5 digit color screen display, maximum reading 99999. Measuring range: 0-200,000 Lx/Fc Display Resolution: Lx: 1000: 0.1lx; ≥1000: 1lx FC: 100: 0.1FC; 1000: 0.1FC; ≥1000: 1FC Accuracy: 1. ±(3%+5Lx), calibrated according to ordinary incandescent lamp at 2856°K. 2. ±(6%+5Lx), other visible light source Cosine Angle Deviation Characteristics: 30° ±2%, 60°±6%, 80° ±25% Sensor: Digital light probe and photosensitive film. Sampling Rate: About 8 times/sec Incident Angle: 120 Degrees Spectral Range: 400~ 700nm Automatic Shutdown: 15 Minutes Operating Environment: -10~50℃, maximum relative humidity of 80%. Indoor Altitude: Approx. 2000m / 6561.68ft Storage Environment: -10~50℃, maximum relative humidity of 70%. Battery: 3 x 1.5V AA battery, not included. Product Size: 256 x 67 x 35mm / 10.08 x 2.64 x 1.38iny