SIREN, 40MM, 24V, 8 TONE, 90DB; Tones:8 Tone; Supply Voltage V AC:24V; Supply Voltage V DC:24V; Sound Level SPL:90dB; External Depth:68mm; IP / NEMA Rating:IP66; Operating Temperature Min:-30°C; Operating Temperature Max:60°C; Resonant Frequency:-; Curre