🔆Highly Accurate with Large Range - This illuminance meter features a wide measuring range of 0.1-400,000 lux (40,000 FC), accurately detecting both weak and strong light. Ideal for photography, Car Headlights, set design, factories, offices or home use. | 🔆Fast Response and Rotatable Detector - Only 0.4 seconds is needed for an accurate reading. The advanced built-in calibration sensor measures light levels at a super fast speed of 3-4 times per second. The optical detector rotates 270 degrees for multi-directional detection, ensuring precise light measurements from multiple angles. | 🔆Multi-Functional Measurement - This digital lux meter features two switchable units (lux and FC), MAX/MIN mode, ambient temperature in ℃/℉, backlight, low battery reminder, auto-off, data hold, and data storage (33 sets) functions, making it more convenient for you to measure light. | 🔆Wide Applications - The 881D lux meter is suitable for measuring a variety of visible light sources and is ideal for detecting illuminance in homes, schools, offices, workshops, stages, farms, and factories. For example, you can use this light meter to check the brightness of car headlights at home to ensure consistent brightness. | 🔆What's in the Box - 1x GOYERRNES digital light meter with sensor cover, 1x carrying case, 3x AAA batteries, 1x screwdriver, 1x user manual. Additionally, enjoy a 2-year after-sale service and lifetime technical support. Please feel free to contact us if you have any concerns.