• This Upgraded HVAC Controller Features Ethernet Connectivity for Remote Access and Monitoring

    Quest Controls’ Model 600 allows users to adjust environmental control remotely.
    July 14, 2025

    Quest Controls has enhanced its Model 600 Lead/Lag HVAC Controller with built-in Ethernet connectivity. The upgrade delivers advanced remote access, monitoring, and configuration capabilities. Users can monitor and adjust system settings remotely via a password-protected web interface or Modbus TCP, reducing the need for on-site service calls and enabling smarter environmental control from anywhere.

    Model 600 can control two independent HVAC units, providing robust lead/lag operation and redundancy for critical sites. For larger or more complex deployments, multiple Model 600 controllers can be networked together and integrated with Quest Controls’ flexible architecture for centralized management.

    Request More Information

    By clicking above, I agree to Endeavor Business Media's Terms of Service and consent to receive promotional communications from Endeavor, its affiliates, and partners per its Privacy Notice. I also understand my personal information will be shared with the sponsor of this content, who may contact me about their offerings per their privacy policy. I can unsubscribe anytime.