Ajinkya Electronic Systems are manufacturer exporter supplier of Bell Controller. Siren Controller works as a Time Switch to On/OFF Factory/School Siren/Bell. In a Factory siren is to be played at specified fixed timings; say at start of shift, Lunch time so on. Siren interval depends on the event. Typically this is job of security personals to switch on/off siren at predefined time, putting extra burden on them. Now Siren controller, handles the job here. It generates the siren automatically at given timings on preprogrammed duration . User can programme off days so that siren remains off on programmed days of the week.