BUZZER ROUND 40MM 24V 2.9KHZ 85DB; Tones:Continuous Pulse; Supply Voltage V AC:24V; Supply Voltage V DC:24V; Sound Level SPL:85dB; External Depth:45mm; IP / NEMA Rating:IP66; Operating Temperature Min:-30°C; Operating Temperature Max:60°C; Resonant Frequency:2.9kHz; Current Consumption:80mA; Product Range:KombiSIGN 40 Series; SVHC:No SVHC (15-Jan-2018)