Addressable siren with red flash and built-in isolator, sound power of 97dB(A) ±3dB at 1 meter, two strobe flash frequencies (0.5Hz, 1Hz), automatic siren and flash synchronization, 32 selectable tones, volume, flash coverage and frequency adjustable by microswitches, compatible with Advanced and CLIP protocol (99+99), direct loop power (15V ~ 29V DC), Wall mounting height of 4.2/4/2.4 meters, requires NOTIFIER-77 base (B501AP), IP21C protection degree (with B501AP base), white body, dimensions Ø121 x 85 mm (in standard base), EN 54-3, EN 54-17, EN 54-23, Category W certifications. [209053013]