Economical 7-Day Timer is the easiest solution to automate school zone Sign Alerts™ and beacons to warn drivers of the presence of students. K&K utilizes the 7-Day Timer in all of our Eco School Zone Systems. The LCD Display shows the programmed schedule for a 7-day time period. This time clock provides flexible timing for daily and/or weekly programming. Setting the 7-Day Timer is simple and fast by means of push buttons and display prompts. This timer combines 24 hour/7 day timing. Up to 8 on/off operations are allowed for each day for a total of up to 56 switching cycles per week. Minimum time setting is 1 minute. Lithium battery provides 5 year backup.