Federal SignalSLM500A Streamline Modular Low Profile Combination LED/Sounder, Amber, Required Base Sold Separately, Polycarbonate

Feels quality, and heavy in the hand. Electronics seem to be of high quality. Easy to wire, and I'm very impressed with the wide selection of tones, 32 of them to choose from: linear, bi-tone, intermittent, chime, sweep, simulated bell, etc...There is a rubber gasket thats supposed to seal the blue plastic to the housing. The seal could be a little tighter there as there is only a 1/90th of a turn to close it, and the set screw doesn't seem to go into a dimple to have a firm hold, the set screw is part friction hold, and very small amount of mechanical hold. But it should hold water out okay, but if driving rain I would probably want to caulk the gasket shut.