The 28L features a back light and is one of our mid-range stopwatches designed for ease of use. It includes a single, easy-to-read display with extra-large digits. The case is splash and shock resistant, making it suitable for timing events up close. The MODE button allows you to cycle through three modes: Mode A - Stopwatch The single display counts up to 24 hours. The first 30 minutes are timed to 1/100th of a second; after that, timing continues in one-second intervals up to 24 hours. Functions include Start, Cumulative Split, Stop, Resume, and Reset. Mode B - Time of Day Displays the current time in hours, minutes, and seconds. Mode C - Alarm Allows you to set an alarm time. The alarm is enabled or disabled by pressing and holding the SPLIT/RESET button, then pressing the START/STOP button. The display includes a backlight for visibility in low light or darkness. Key Features: - Extra large display with bright backlight - 1-2 finish cumulative split - Single display running time - Time of day and date display: hours, minutes, seconds - Time out option - Battery: CR2032 - Dimensions: Length: 80mm, Width: 70mm, Depth: 20mm - Digit size: 15mm