This video shows the basic operation of the Whelen 295SLSA6 light and siren controller. Part 2 will include all of Scan-Lock siren tones. The tones were set this way by me, it had the default tones programmed when I got it.

Not for sale, I already have a use for this.

Current tone settings,
MAN 1: Mechanical Coast-to-Stop
MAN 2: Wail Coast-to-Stop
HF: Wail, Yelp, Piercer
T1: Alternate Yelp, Alternate Wail
T2: Wail, Y249
T3, HI/LOW, Warble
Airhorn set to Low Frequency Airhorn