The DA20 Siren accessory is an alternative option which replaces the standard DA20 buzzer with a loud alarm. The Siren is perfect for use in very noisy environments, such as factories, or applications where people might be far away from the door upon which the alarm is installed. The alarms are used mostly to protect
refrigerated and frozen materials, but also for security to prevent any door from being propped open when it shouldn't be.
Using the DA20 dipswitch settings, you can select between a soft volume or a loud volume. Installation is quite easy, but will require unscrewing the cover from the DA20. The Siren wire is then fed through a hole in the main unit and screwed into a terminal block inside.
This item is shipped World Wide.