Over the past 30 years, the Essex KTP Series has become the choice of security professionals worldwide. The KTP Series is specified for a variety of access control (and equipment control) applications. Whether installed in extreme climate conditions or inside a building, the Essex KTP Series is unsurpassed in its’ ability to tolerate virtually any environment. Utilizing Essex cutting edge Piezoelectric Switch Technology, the KTP Series features a proprietary Piezoelectric Switch Technology. The KTP Series outperforms all other keypads mechanical, membrane, conductive rubber and other switch technologies – in indoor, outdoor, high use and harsh environments. Laser marked customizable Keypad graphics withstands wear from high use and harsh conditions (i.e. bleach, JA Jetfuel). Built to last, the KTP Series is backed by a limited lifetime warranty.