One Channel Hand Controller/Transmitter
Jaycar's Description of the One Channel Hand Controller/Transmitter
This is the latest version of the most common remote garage door transmitter in use in Australia/New Zealand today. The single button controller operates on 27MHz and requires a 9V battery.
The transmission is custom coded via a 10-way DIP-switch which is accessible from the battery cover and is matched to the receiver. Suitable for use with garage doors, security gates, and other equipment. This will save ordering one through the garage door people who charge a fortune for replacements.