ZKTeco (ZK EX-801A) Outfitted with crisp, dark, laser-etched “EXIT” lettering that resists fading, chipping, or rubbing away even under continuous everyday use, Equipped with standard Normally Open (NO) and Common (COM) dry contact outputs, ensuring easy physical integration with virtually any access control panel or lock controller, Operates flawlessly across an expansive input spectrum ranging from standard low-voltage 12V DC up to 36V DC infrastructure loops, Designed with precision structural sealing to provide effective resistance against ambient dust collection and localized water splashes.