Where can I get the DMX controller to change the settings on my DMX512 LED Dimmer / Decoder?

Where can I get the DMX controller to change the settings on my DMX512 LED Dimmer / Decoder? Also, I will need to purchase 4 or 5 more DMX512 LED Dimmer and Decoders, and I would like to have one control device, or web app to adjust all of the LEDs. 

While we do not sell DMX controllers in our own storefront, some customers have utilized third-party products such as the American DJ myDMX 3.0 DMX Controller and Software for PC connection and the adjustment of multiple DMX Dimmer and Decoders. Unfortunately, we have not yet performed internal compatibility testing on these products. 

In the hopes that it proves to be useful, we have also attached the link to the DMX Dimmer and Decoder Specification Sheet and User Manual. This document contains daisy-chain connection instructions as well as details regarding the connection to a third-party DMX Controller.