Available in – 12, 24, 120 and 240VAC Coded or sustained tones Produces 100 dBa at 10' (110 dBa @ 1m) Surface or flush mounting options Type 4X when installed with Panel Mount Gasket Kit or Weatherproof Backbox (Model WB); Type 4X and Type 12 when installed with Surface Mount Trim Ring (Model TR) UL and cUL Listed, CSA Certified and FM Approved