This digital 7-day timer module is ideal for setting up free access periods in environments such as schools and universities, for class changeover times and mass entry/exit events. With an LCD digital display for simple programming, and up to 8 on/off schedules that can run daily or weekly, the TH827-12 is a flexible, handy module for a wide variety of projects. The timer operates automatically but also includes a manual override function – just in case!