The Leviton HCPRF is similar to the X-10 RR501 but handles all housecodes and has a silent relay (300W max load) that can be controlled via RF or PLC as well as being switched locally. The relay can use any of the 256 X-10 addresses.
Like all X-10 RF devices sold in North America, it uses 310MHz RF. It uses a crystal controlled superheterodyne single chip RF receiver. Despite being the equivalent of the RR501, it is physically smaller than the TM751. Range is about 25 feet. Unfortunately, the small size of the case precludes replacing the antenna to increase range. Range can be maximized by placing it in a central (both vertically and horizontally) location.
Copyright: No part may be reproduced except as authorized by written permission. This restriction extends to reproduction in all media.