BT-1 Module | Bluetooth Module for Solar Charge Controllers | Only for 20/30/40/60A MPPT Models

It doesn't work. Probably not the module. My mppt must not be supplying the power to the unit, as the light will not come on

Plug and play. Doesn't get any easier. Most important - if (and it's rare) you need tech support, RICH has the BEST customer/technical support in the world.

Everything connected very easily and very easy to install.