Digital Illuminance Meter 200000LX 20000FC 50 Sets Data Storage 1‑60s Recording High Accuracy Light Tester Item Type: Digital Illuminance Meter Material: ABS Model: TA636A Measurement Method: Integrated Measurement Range: 0.1-200000LX; 0.01-20000FC Measurement Gear: 200 2000 20000 200000LX; 20 200 2000 20000FC Accuracy: ±(4%+10dgts); Calibration with standard planar lamp at color temperature of 2856K Resolution: LX<200: 0.1; LX≥200: 1; FC<20: 0.01; 20≤FC<200: 0.1; FC≥200: 1 Illuminance Display: Four digit display, maximum 1999 Sensor: Silicon photodiode with filter lens Sampling Rate: 2 times/second Incident Angle: 120° Repeatability: ±2% Spectral Range: 400-700nm Auto Power Off: 15 minutes (can be manually turned off) Operating Environment: -10-50℃, maximum 80% relative humidity; Indoor altitude <2000m Storage Environment: -10-50℃, maximum 70% relative humidity (remove battery) Battery: 1.5V AAA battery x 2 (not included)