Honeywell
Honeywell's JADE economizer system 
is an expandable control system, with LCD screen and keyboard. Optional temperature, enthalpy and carbon dioxide sensors are added to this controller. It can also be used as a stand-alone economizer module connected directly to a commercial programmable ambient thermostat.
The W7220 economizer module can be connected to the optional Sylk Bus sensors for simple or differential enthalpy control. The module provides power and communication to the Sylk Bus for special sensors with this type of communication, which facilitates installation, as well as being easily configured.
Its feed is from 20 to 30 vac; its consumption is 11.5VA@24vac 60Hz; its relay output capacity is 1.5A@30v in operation and its external sensor power output is 21Vdc 48mA.
Buen día, amigo, claro que sí, te pondremos en contacto con un representante de Honeywell.
Saludos.