Catalog > Consumer Electronics > Security & Alarms > Access Control > Remote Controllers Rolling Code Transmitter Rolling Code Transmitter PI CODEX TX5 NO LONGER AVAILABLE Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview The Codex range of Remote Control Transmitters and Receivers are based on Encrypted Rolling Code technology that provides high security remote controls. Additional Information Frequency 433MHz Colour Blue-5xGrey buttons Channels / Buttons 5 Button