Well System Sensor has done this
The Low frequency Advances are coming back temporarily because of supply chain issues. This the first time that a Fire alarm manufacturer revived a discontinued product.
It looks like we will never escape the advances
Nice, glad they decided to do this (even if it’s only because of the supply chain shortage).
Gonna be a rare time that System Sensor brought back the Spectralert Advance low frequency sounder strobes back while the supply chain is out of wack.
It looks like they’re working to clear out existing inventory after the discontinuation. They must have had quite a stockpile on hand!