Supports up to 2 outdoor units, 2.4'(320*240) QVGA LCDdisplay, Long standby doorbell ( battery up to 2 years), Wide angle lens and IR LEDs for night vision, Auto manual video recording with date and time( Optional), Microphone and speakerphone, Brightness and talk volume are adjumore...
On a typical day in the school a student’s school activity starts with the first bell followed by a series of bell ringing to notify the beginning and the end of various activities including teaching periods. For this purpose generally the ringing of the bell is done manuamore...