Update:
Drove around campus today. All of Purdue's old sirens have been replaced with Eclipses with battery backup. The new eclipses were placed in the same locations as the old sirens. Purdue also added two more sirens to their (and the county's) system on Purdue property slightly off of the main campus. Both are 2001-130s. One is located at the Physical Facilities building south of campus and one at the Grand Prix track / Tennis Center NW of campus. I'll post pictures later.