Federal Signal 131ST-120G
Your review: This unit works as specified. It would be nice if the strobe rate was about 2x/sec rather than 1x/sec.
The unit is a bit flimsy.
It also arrived with one of the lens screw rolling around in the box. The screw hole was stripped so the screw would not stay in. The screws are undersized for the job.
I think I'll look for an LED version the next time.