This practical mini lux meter is stable, safe and reliable to measure light illuminance, it also can show you the ambient temperature. It is widely used in lamps, husbandry, industrial and mineral industries, laboratory and office, etc. Features: Mini lux meter with stable, safe and reliable measurement. Wide measurement range 0-200,000 lux and automatic/manual range shift. Measuring unit is switchable: Lux or FC. MAX / MIN / Data Hold functions, high accuracy. LCD display with backlight for easy operation in darkness. Low battery indication & Auto power off, energy saving. NOTE: When measuring under MAX mode, the meter only display the value the current value; when measuring under MIN mode it only display the value less than the current value. Specifications: Measuring Range: 0-200,000 Lux Resolution: 1 Lux Accuracy: 5%rdg10dgts Temperature Range: -10~50 / 14~122 Sampling Rate: 1.5 times/sec Measurement Repeatability: 2% Operating Temperature: 0-50 (80%RH non-condensing) Storage Temperature: -10-50 (70%RH non-condensing) Power Supply: 3 x 1.5V AAA Batteries (Not Included) Item Size: 16.5 x 5 x 2.7cm / 6.50 x 1.97 x 1.06inch Color: Black Material: plastic Package Contents: 1 x Lux Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.