TimeTrax Sync LED Red Digital Clock. Requires Timetrax transmitter and software (9T1Wi). Features 6.4cm 6 digits (HH:MM:SS) & up to 30m viewing distance. Receives reliable time update every 20 seconds from TimeTrax Wireless RF Transmitter. Military Time capable. Clock face is tinted to reduce glare. Bright red LED (6.4cm , 6 digit). Modern styling gives your facility a high-tech look. Durable ABS frame and shatterproof polycarbonate lens. Extremely rigid body construction designed for durability and long life. Dual-sided clock mount available with wall or ceiling brackets (bracket not included). Automatically adjusts for Daylight Saving Time and resets if power failure occurs. Made in USA.