AUDIO SIGNAL INDICATOR 90DB 28V IP34; Tones:Low Frequency; Supply Voltage V AC:-; Supply Voltage V DC:28V; Sound Level SPL:90dB; External Depth:51mm; IP / NEMA Rating:IP34; Operating Temperature Min:-20°C; Operating Temperature Max:60°C; Resonant Frequency:450Hz; Current Consumption:25mA; Product Range:-; SVHC:No SVHC (15-Jun-2015)