The Gossen Digisix 2 is a tiny light meter deisgned for incident or reflective light measurement. Easy to read, with a clear LCD display for EV and a classic calculator dial to provide a variety of exposure choices at a glance. Other features include a clock, a timer, and because why not, a thermometer. Accurate readings, good function. Battery tray has a small segment missing which does not affect function or battery holding ability; the meter is ontherwise in excellent condition. Runs on a single CR2032 battery (included).