MC41-BP1 is a self contained, plug and play, bell ringing system for small schools and factories. It uses the time proven MC41LV master clock as the bell programmer. Program memory can be adjusted to meet any specific application with up to 100 events per day, and up to 9 alternate 7 day plans or schedules for a total of 200 steps. Each program step can address any combination of the relay outputs, for any day of the week, including groups of days such as Monday, Wednesday and Friday, or Monday through Friday. MC41-BP1 includes a high quality, low voltage, six-inch bell, which is pre-wired with a 15ft cable for easy installation. Mounting hardware is included. No wiring is required. Simply hang enclosure and bell, plug it in and enter your bell program.