21 Jan ST312B Controller (Discontinued)
This is a single zone 3-model range of our second most popular controllers. The ST312B (our simplest controller) is a single program version of the ST316B.
The ST312B controllers is supplied without leads – these need to be ordered separately.
Suitable plug leads are: CC2H, CC3H, CC2A or CC3A. Suitable leads without plugs (for hard wiring) are: CC2 or CC3