Portable Extinguishers, Emergency / Exit Lights, Eye Wash Station, and Fire Suppression Inspection Monthly Fire Extinguisher Inspection Monthly Emergency/Exit Light Inspection Monthly Eye Wash/Shower Station and Defibrillator Inspection Monthly Inspection of 40 Robovent Fire Suppression Systems. Per Mike Cowart we can access the units located on top via ladder to inspect each month - PO# 166587 Exit Sign Battery Replacement - Replace (5) 1.2v 1200MaH batteries in exit signs.