• Operation temperature & Humidity: 0~40°C (<80% RH)
• Storage temperature & Humidity: -10~60°C (<70% RH, Removed Battery)

Function description:

• Sample rate >=2 times/sec
• Automatic and manual range select
• Maximum, Minimum function
• Data Hold
• Peak Hold
• Relative Measurement (Zero)
• Unit conversion: FC/LUX
• Display: 3 1/2 bit LCD display, maximum reading is 1999. And with analog bar display
• Overload range tips: When the measured value exceeds the current range, the display will appear "1"/"FFF"
• Photo: 20, 200, 2000, 20000, 200000 Lux
             20, 200, 2000, 20000 FC
• Low power alarm
• Auto power off
• Key voice indication
• Battery time: >200hours
• Battery: 9V DC
• Accuracy: ±3% (According to the ordinary incandescent lamp when calibrated at 2854K)
                  ±6% Other visible light source

Cosine angle deviation feature:

• Cosine angle: Error
• 30°C ±2% : ±2%
• 60°C ±6% : ±6%