[World's First Handheld EML Meter & Sensor] Designed for professionals like architects, lighting designers,and horticulturists. You can measure EML (Equivalent Melanopic Lux) in the room, which impacts sleeping quality, circadian rhythm, and even cardiovascular health, and build better habits according to statistics. | [Well Performance Index] 6-in-1 Light Measurement provides data of Illuminance, CCT (Color Temperature), EML, Visual Contrast, mEDI and Uniformity. You can create optimal lighting for various needs, from photography to healthy workspaces. | [Smart Connectivity] Compatible with iOS and Android devices. Please scan the QR code on the back of the product and download the In. Licht pro-Lighting Meter app. Then connect the app via Bluetooth to transfer data analysis to your phone. | [Dual Power Options] Use 3xAAA batteries for portability or a Micro-USB cable for extended use while recording data. | [Simplified Professional Lighting Design] Quick setup, intuitive app, and easy access to 5 key lighting metrics in just seconds. This empowers both professionals and enthusiasts to achieve high-quality lighting environments for better productivity or comfortability. | [mEDI measurement]Accurately assess the impact of light on circadian rhythms and optimize your environment for health and well-being. Elevate your lighting design with precision and insight. Now available-make every light count!