SRN/SEN/SMP SERIES SEN15/SEN25 Type: 15 Built-in Sounds (Max. 85dB at 1m) 5 User-defined Voice (Max. 98dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): □130x130 Length: 200 Materials: ABS Protection rating: IP55 SMP35 Type: 30 Built-in Sounds (Max. 115dB at 1m), 30 MP3 User-Defined Sounds (Max. 113dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): □145×177 Length: 216 Materials: ABS Protection rating: IP65 SMP50 Type: 30 Built-in Sounds (Max. 123dB at 1m), 30 MP3 User-Defined Sounds (Max. 118dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): □145×177 Length: 216 Materials: ABS Protection rating: IP65 SRN Type: 15 Built-in Sounds (Max. 85dB at 1m) 5 User-defined Voice (Max. 98dB at 1m) Voltage: DC:12V,24V AC:110V,220V Dimension (mm): Horn Diameter: Ø125 Length: 185 Materials: ABS Protection rating: IP55