Nittan EV-SDR Base Addressable Sounder Base, 24-38 V DC, Ø115×37.6 mm 12MP (3504×3504) both designed for excellent sound

both designed for excellent sound quality and ease of installation

Ideal for multiple entrances to control lighting

jamming detection and remote testing/configuration via the Ajax app

internal usable depth

Nittan EV-SDR Base Addressable Sounder Base, 24-38 V DC, Ø115×37.6 mm 12MP (3504×3504) both designed for excellent soundThe EV SDR Base Sounder is a low profile sounder device designed for ceiling mounting, compatible with all types of Evolution analogue addressable detectors. Key Features: Addressable loop powered base sounder Nittan Evolution FSK protocol EEPROM Addressed (Programmer) 12 tones DIP switch selected (3 approved tones) Replaces EV ABS Sounder Ensure compliance with UK wiring regulations and installation guidelines.