Need to test the illuminance? Need to know the lux level? Try this Digital Lux Meter. It is stable and reliable to measure light illuminance, it also can test temperature. Widely used in lamps, husbandry, industrial and mineral industries, homes, laboratories, office, schools, indoor farming, etc. Features: Split Type Design: the separation of the measurement part and reading part with retractable spring can avoid the influence of strong light on the naked eye. Wide Measurement Range: 0-200000 lux and 0Fc 20000Fc with switchable units of Lux / Fc and temperature units of / . Large illumination probe effectively increases the measurement area with better processing efficiency in higher or narrower measurement environment. 2 Recording Modes: automatic storage of illumination data (up to 2000 groups) and manual storage (up to 60 groups). Easy to Connect with APP by BT: You can get the illuminometer states and testing data by using the mobile phone App which is more convenient and smarter. Easier to store the test data by mobile phone. MAX / MIN / Difference Value / Data Hold functions, high accuracy with automatic range and quick response. Large and clear LCD display with backlight for easy reading. Low battery indication & auto power off, energy saving. Widely used for monitoring light intensity in homes, laboratories, office, schools, indoor farming, etc. Specifications: Color: Black Material: Plastic Measuring Range: 0 Lux 200,000 Lux, 0Fc 20000Fc, 4 Ranges Gear Range Resolution Accuracy X1 Gear 0.0199.9Lux 0.1 Lux 3%rdg+5dgts X10 Gear 20.0*10199.9*10Lux 1 Lux 3%rdg+10dgts X100 Gear 20.0*100199.9*100Lux 10 Lux 4%rdg+10dgts X1000 Gear 20.0*1000199.9*1000Lux 100 Lux 4%rdg+10dgts BT APP Connection: Download "Lux-Meter" APP from Google Play. Compatible for Android Smartphone(The App only supports Android 5.0 version or above.) Reapeatability: 2% Refresh Rate: 2 times/second Temperature Probe: NTC Thermistor Temperature Measuring Range: -2050 / -4122 Temperature Accuracy: 1.0 / 2.0 Resolution: 0.1 / 0.1 Automatic Storage Mode: 2000 Groups Manual Storage Mode: 60 Groups Auto Power Off: Default time is 10 mins and can be reset Display: LCD Display with Backlight Power Supply: 3 * 1.5V AAA Batteries (Not Included) Item Size: 146 * 72 * 30mm / 2.2 * 1.2 * 6.9in Illumination Sensor Size: 108 * 58 * 33mm / 2.2 * 1.2 * 6.9in Storage Case Size: 250 * 200 * 60mm / 2.2 * 1.2 * 6.9in Item Weight: 189g / 6.7oz Package Size: 27 * 21 * 6.5cm / 10.6 * 3.7 * 2.0in Package Weight: 755g / 26.6oz Package List: 1 * Digital Lux Meter 1 * Storage Case 1 * USB Line 1 * User Manual (English)