Dortronics is showing its comprehensive portfolio of waterproof push button switches at ISC West 2018 (Booth #1038). Featured products include the IP-65 rated WR5276-HD28/HD29 Series and IP-66 rated WR5276-HD22 Series which have been specifically designed and manufactured to withstand harsh environments. The illuminated LED ring color is red or green and switch contacts are isolated normally open and normally closed. When used with card access systems or automatic door openers, the switches? double pole, normally-open, dry contact outputs can be wired to signal a door to unlock and for the door opener to activate.