The Wheelock ET Vandal Resistant speakers and speaker strobes provide a full range of rugged, high performance combinations specifically designed to meet the critical needs of the life safety industry for voice and tone signaling. Available in compact, aesthetically pleasing package styles, each ET model covers both 25 and 70 volt audio systems, and has multiple wattage taps from 1/8 to 8 watts. Their high-efficiency design provides improved voice clarity and higher sound output for typical low frequency fire evacuation signal, such as the "slow whoop" and "temporal Code-3". ET80 Speaker Strobes are designed to meet the latest requirements of NFPA 72 (National Fire Alarm Code), ANSI 117.1 (American National Standard of Accessible and Usable Buildings and Facilities) and UL Standard 1971 (Standard for Signaling Devices for the Hearing Impaired) and UL Standard 1480 (Speakers for Fire Protective Signaling Systems). Series ET80 Speaker Strobes are UL Listed for indoor use, wall mount, under Standards 1971 and 1480 for Speaker Appliances, and incorporate a Lexan® lens to provide maximum reliability for effective visible signaling. The ET80-24MCW-FR-ULC model is specifically listed under ULC. Strobe options include Multi-candela MCW strobes with field selectable 15/30/75/110 or MCWH strobes with field selectable 135/185 candela. Single candela 1575 strobes (rated 15cd with 75 cd on axis) are also available. ET80 Speaker Strobes, when used with Wheelock DSM Sync Modules or Wheelock Power Supplies produce synchronized strobe flashes for compliance with ADA guidelines concerning photosensitive epilepsy