For our EL2 controllers we developed an External Contactor Module, the ECM1. As the Master Controller works on a low voltage output, it is not capable of switching auxiliary equipment. With the ECM1 you can extend the functionality of your EL2 controller to switch auxiliary equipment, such as heaters, dehumidifiers and CO2 equipment during the lights on or lights off cycle, according to the controller set lighting hours. more/less
The Gavita Master controller EL2 has two outputs for optional External Contactor Modules (ECMs). These industry grade contactor units can switch a load up to 15 amps of accessories during either lights on or lights off period. As the ECMs are steered by a low voltage signal you can even locate them close to the accessories themselves, enabling easy installation and optimal flexibility. The come with localized male and female plugs so that installing auxiliary equipment is just a matter of plug and play.