The E2S Ex d flameproof STEx family of signal and call points feature 316L grade stainless steel enclosures. Certified for Zone 1, 2, 21 and 22 applications the alarm horn sounders, Xenon and LED beacons, combination signals, PA loudspeakers plus SIL2 compliant call points and push buttons provide reliable signaling and activation solutions for the most arduous of environments. Browse the category to find the solution to your life safety application. Use the Product Finder for assistance in selecting the correct device.