Cypress Computer Systems Inc. offers the mid-range wireless DUPREX RF (Dual, Supervised Reader Extender). This solution is built on Cypress's trusted SUPREX technology and is used to extend the distance between any two access control readers and a controller. With the capacity to span up to 2,500 feet, the mid-range DUPREX eliminates the need for additional controllers and is ideal for applications where hard-wiring is time consuming and costly. The DUPREX is ideal for multi-location organizations, including building and office complexes, parking gates and elevator shafts. It features alarm output from the central unit, immediately indicating power or communication loss with the reader at the remote unit.