QT-ETN SERIES QT50L-ETN Type: LED Steady/Flashing Type Buzzer type(Max. 90dB at 1m), Sounder type(Max. 85dB at 1m): optionally available Voltage: DC:12V,24V Dimension (mm): Diameter: Ø50 Height: 422-586 Materials: Lens-PC Housing-PC Protection rating: IP54 QT50ML-ETN Type: LED Steady/Flashing Type Buzzer type(Max. 90dB at 1m), Sounder type(Max. 85dB at 1m): optionally available Voltage: DC:12V,24V Dimension (mm): Diameter: Ø50 Height: 208-372 Materials: Lens-PC Housing-PC Protection rating: IP54 QT70L-ETN Type: LED Steady/Flashing Type Buzzer type(Max. 90dB at 1m), Sounder type(Max. 85dB at 1m): optionally available Voltage: DC:12V,24V Dimension (mm): Diameter: Ø70 Height: 287-511 Materials: Lens-PC Housing-PC Protection rating: IP54 QT70ML-ETN Type: LED Steady/Flashing Type Buzzer type(Max. 90dB at 1m), Sounder type(Max. 85dB at 1m): optionally available Voltage: DC:12V,24V Dimension (mm): Diameter: Ø70 Height: 148-372 Materials: Lens-PC Housing-PC Protection rating: IP54