1 ST520 colorimeter

This is a colorimeter suitable for measuring the color temperature of white LEDs. The main unit can be fixed in place with a magnet. Comes with a tripod mount. Measurement functions: illuminance, chromaticity coordinates (x,y) (CIE1931)/(u',v') (CIE1976), correlated color temperature/color difference (CIE1960) Accuracy: Ev/±3%+2digit (when standard light source A3000Lx), x,y/±0.02 (when RGB LED 100Lx) Resolution: Ev/1Lx (0 to 9999Lx), 10Lx (10000Lx or more), CCT/1K (0 to 9999K), 10K (10000K or more), x,y/0.001, u',v'/0.001 Repeatability: x,y/±0.003 (RGB LED 100Lx) Response time: approx. 1 second Temperature characteristics: Ev/±(5%+2digit) (standard light source A3000Lx), x,y/±0.008 (at RGB LED 100Lx) Humidity characteristics: Ev/±(3%+2digit) (standard light source A3000Lx), x,y/±0.005 (at RGB LED 100Lx) Size: Main unit: 140 x 49 x 29 mm, Sensor: 165 x 50 x 36 mm Power supply: 006P (9V) dry battery (included for testing) Weight: Approx. 180g (excluding batteries) Measurement range (Ev): 0 to 80000Lx Measurement range (CCT): 99990K (MAX) Operating temperature range: 0 to 50°C Battery life: 70 hours (approximate)