Apex Jr
 

What is the different of Apex Jr and regular Apex? I heard Apex Jr will be lunch on the market soon.

Someone else created a nice table comparing features. The short answer is that the Apex Jr is very basic and dramatically cheaper. It can only monitor temperature unless you expand it with a separate probe module. Control and programming-wise it's supposedly identical to the Apex and Apex Lite. The Apex Jr sounds like an excellent affordable controller for someone with just basic needs, such as myself :)