A very popular transmitter with six 17mm diameter keys. Up to 20 functions can be accessed on 4 levels but it is more often used as a simple 6 key – 6 function device.
An external switch can be connected to the unit giving access to the function on key 1. This can be used in a night position for example to turn on a light or activate an alarm.
The unit is ideal where only a small number of house functions and a limited amount of TV control is required.