Catalog > Consumer Electronics > Security & Alarms > Access Control > Remote Controllers Trinary Code Transmitter Trinary Code Transmitter UNI433TXT1 TX1 CHANNEL REMOTE 433MHZ TRINARY Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Frequency 433MHz Channels / Buttons 1 Channel 1 Button