SIMPLEX TrueAlert ES is the first advanced line of intelligent, fully addressable notification appliances. Constant electronic supervision and self-testing capability help to ensure the appliances will work when needed and enable building owners to avoid tedious and expensive after-hours manual testing. Features include a flexible wiring architecture that cuts installation time by up to one-third, powerful documentation and reporting capabilities that support code-compliance efforts, and addressable speakers capable of delivering audio messages to specific areas of a building during an emergency.