The Jumbo Atomic Clock with Remote Thermometer, model JMR838WFA, is a low vision digital wall clock and outdoor thermometer designed for use by individuals with low vision. This desktop or wall-mount clock for home or office displays the time in large digits on a liquid crystal display (LCD) screen. It also displays indoor and outdoor temperatures and the date in smaller characters, and shows pressure trends and local weather forecasts using graphical icons. The clock sets itself automatically to the U.S. Atomic Clock, and features an eight-minute snooze and crescendo alarm. The thermometer operates through a Cable Free remote sensor using a radio transmission frequency of 433 megaHertz (mHz), and is compatible with sensors THR138/THR128 (included) or THC138 (optional). POWER: Uses four triple-A batteries for the main clock/display and two double-A batteries for the temperature sensor. DIMENSIONS: Time display digits are 2 inches high.