The NEW Alert has also been upgraded with new features designed to enhance siren operation and increase ease of installation. These features include making Instant-On operation a standard requiring no enable input; terminal block wiring which offers simple, plug-in connection; and a significant reduction of the internal electronics footprint giving the SA-385 a much smaller chassis size. Compact 100-watt amplifier. Four-position rotary switch features Wail, Yelp, and Phaser or optional Two-Tone/HiLo siren tones, and push-button override for Manual and Air Horn. P.A. override with attached noise-canceling microphone and face mounted volume control knob. External DIP switch programmability for easy siren customization. Instant-On provides automatic power when a siren function is selected. Output indicator light for diagnostics. Horn Ring Cycler 2 (HRC2) enables siren tone selection through the horn ring for pursuit or rescue situations. LED backlighting. Terminal block wiring for easy installation and serviceability. Exposed in-line fuse to protect the siren. Short circuit, high voltage and reverse polarity protection systems. Mounting brackets and hardware for siren and P.A. microphone. 41/2″ W x 1 15/16″ H x 4 9/16″ D. No-hassle 5-year limited warranty. Meets Class A Sound Level and is California Title 13 configurable.