The most common way to monitor students' attendance is to let them sign the attendance list when they enter the class. However, this wasn't as effective because students were able to sign under their friends' names even if they were absent. Also, passing the names list among students in a big class takes time, and sometimes this sheet gets lost. This paper discusses an effortless, convenient, efficient, and secure solution for both students and teachers in order to solve such problems by using fingerprint sensors and Xbee modules (Zigbee). Using this system, via mobile phones or tablets, teachers can not only monitor students' attendance but also can remotely activate the system and obtain detailed PDF reports of students' participation.