The Federal Signal Informer is a commercial grade Tone Alert Receiver (TAR) designed for use in situations that require an emergency alert. The Informer incorporates a large 4” speaker that creates a very loud output for both live voice and audio alerts. The device can be wall mounted or placed on a desktop and comes with a small detached antenna that can be connected to the back of the Informer for optimum signal reception. This rear connection can also be used to connect an alternative antenna that may be situated in a remote location. VHF, UHF, or Low Band frequency models are available and the Informer operates with narrowband channel spacing.