The EV-SDR Base is a low profile Sounder device, with fully integrated base suitable for ceiling mounting and use with all types of Evolution analogue addressable detectors. The device has 12 tone options (3 Approved), which are easily selectable via DIP switch settings. The EV-SDR Base can be set to “Activate with Detector”, in the Panel configuration, without any special device setting.
The sensor includes a spherical feature within the smoke chamber, providing unrivalled performance for scattering light, plus an Orange LED, which significantly improves response across the fire spectrum. The Chamber construction is designed to minimise the effect of dirt/dust contamination with a fine micromesh made of stainless steel to prevent ingress of even the smallest insects which can create false alarms.