This compact light meter by Reed Instruments can be used either stand-alone or with the Reed Smart Series app (available for download on Android and iOS). When connected to the app, the light meter can be set up to log measurements over a given period. Real-time data logging light meter measures illuminance levels up to 100000 lux. Kit includes: light meter, four AAA batteries. Dimensions: 6. 9"H x 1. 5"W x 1"D. Weight: 3. 4 oz. Can be used either stand-alone or with the Reed Smart Series app (available for download on Android and iOS). Provides wireless Bluetooth 5. 0 connectivity with a range of up to 246'. Easy to operate, designed for one-hand operation. Integrated 1. 3" EBTN LCD display provides flexibility for use without a mobile device. Magnetic backing allows the instrument to be mounted to metallic surfaces. Tripod mount makes possible long-term monitoring. Features a low battery indicator and auto shutoff. Batteries provide a life of up to 50 hours. Measuring range: 0-100000 lux (0-9290 FC). User-selectable sampling rate from 1 to 120 seconds. Easy setup with automatic app integration. Connect, measure, and log data from up to six instruments simultaneously. Export data via Excel or PDF, and create custom reports that can be emailed from a mobile device. Meets or exceeds the CE, UKCA, FCC, and IC ID standards. 1-year manufacturer limited warranty. Safety Data Sheet.