Usage Tips: 1. Mini lux meter with stable, safe and reliable measurement. 2. Wide measuring range: 0-200,000 lux. 3. The unit of measurement can be changed: Lux or HR. 4. Backlit LCD display: can be seen clearly in the dark. 5. Low battery indication and automatic shutdown, energy saving. Description: The Lux meter is widely used in electro-optical sources, research teaching, metallurgy construction, industrial inspection, as well as agricultural research and lighting control. Specifications: Item size: 160x48x25mm Measurement range: 1 to Lux Sampling rate: 1.5 times \/ sec Accuracy: 4% + 10 Units selection: Lux \/ Fc Temperature change: 0.1% \/ Measurement selection: Automatic \/ Manual Repeatability: 2% Operating condition: 0 ~ 50 80% RH non-condensing Storage conditions: -10 -50 70% RH non-condensing Package Included: 1 set * Lux meter(battery not included) Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.