Features: 1. Mini light meter, it is a stable measurement which is safe and reliable. 2. Wide measurement range up to 0-200,000 lux 3. The automatic and manual range can be switched, measuring unit can also switch Lux or FC 4. It can measure maximum and minimum value with data hold function. 5. LCD display with backlight for easy operation in the dark. 6. Low battery indication and automatic power off, saving energy. Specification: Condition: 100% Brand New Model: SW-582 LCD Display: 4-Digit LCD Display with a Maximum Display Count of 9999 Measuring Range: 0-199,900Lux (Automatic Switching Range) Illuminance Measurement: 0-9999Lux Resolution 1Lux Accuracy±(4%rdg + 8dgts) ≥10000 Lux Resolution 10Lux Accuracy ± (5% rdg + 10dgts) Sampling Rate: 2 / s Sensor Type: Silicon Photovoltaic Cell Anti-Fall: 1 meter Overload Indication: Yes Maximum/Minimum Measurement: Yes Data Retention Display: Yes Backlight: Manual On/Off Low Battery Indicator: Yes Altitude: 2000 meters Pollution Degree: 2 Working Temperature And Humidity: 0℃-40℃(≤80% Rh) 40 ℃-50℃ (≤45% Rh) Storage Temperature And Humidity: -20℃-60℃(≤75% Rh) Illustration: 1Fc = 10.76Lux Battery: 1.5V (AAA) x 3 (not included) Weight: Approx. 331g / 11.7oz Package List: 1 * Light Meter 1 * User Manual 1、Mini light meter, it is a stable measurement which is safe and reliable. 2、Wide measurement range up to 0-200,000 lux 3、The automatic and manual range can be switched, measuring unit can also switch Lux or FC 4、It can measure maximum and minimum value with data hold function. 5、LCD display with backlight for easy operation in the dark.