5J Xenon or high efficiency LED Three alarm stages Quarter turn fasteners for ease of installation Low in-rush current (LED only) Static/flashing mode (LED only) 113dB at 1 meter/103dB at 10ft. (max); 105dB at 1 meter/95dB at 10ft. (typical) Volume control for greater flexibility - 20dB 64 tones Separate connections for sounder and beacon IP66 rated EN54-3 Type B compliant Operating temperature range: -13ºF to 158ºF (-25ºC to 70ºC)