Attributes . Suitable for use in air handling spaces per UL1480 Speakers for Fire Alarm, Emergency and Commercial and Professional Use, complies with UL-2043 Fire Tests for Heat and Visible Smoke Release for Discrete Products, CUL, NFPA-70, NFPA- 90A Installation of Air Conditioning and Ventilation Systems. In accordance with the requirements of IEC60849/EN60849. . Names