The Sirenco Multitone C-19 serves as a hand wash reminder Alarm. This Sounder is specifically designed to work for any type of operation, it is waterproof with a built in timer, it has a stage 2 alarm setting and it is battery operated! This means that there is no complicated installation involved and the alarm system can be completely automated! Once you have selected your sound and the time intervals you require, you just mount it on any surface and “Press play”.