Over the past 30 years, Essex Heavy Duty Keypads, Door Access Switches and Keyless Entry^® Access Control Systems have become the choice of security professionals worldwide.  Only Essex products feature a proprietary, piezoelectric Billion Cycle Switch Technology™.  The result is a virtually indestructible,  weatherproof, vandal resistant keypad unsurpassed in its' ability to tolerate any environment (heat, rain, snow or ice - up to 3/8").  New laser marked keypad graphics allows for customization and withstands wear from high use and harsh environments. Professional Grade Keypads and Keyless Entry Access Control systems proudly designed and manufactured in the USA. Most products are backed by a limited lifetime warranty.