Type: Piezo Alarm Rated Voltage: 12 VDC Operating Voltage: 6 To 15VDC Max. Rated Current:150 mA Min.SPL: 112 dB at 12VDC/1m Resonant Frequency: 2.3 To 2.8 Khz Tone Nature: Continue Housing: White ABS Plastic Operat. Temperature: 20 T0 65 C Store Temperature: 30 To 70 C Weight: 15g Remark: 58*75 mm