Building Automation & Energy Management Hardware

At the heart of the Reliable Controls® MACH-System™ installed by Certus Controls are peer-to-peer, fully programmable and networkable BACnet® controllers that have been designed for a combination of maximum flexibility, practicality, and cost efficiency. Our sensors are aesthetically appealing while at the same time being accurate and dependable. As always, our products are meticulously engineered to provide convenient access, easy installation, and rapid expansion capability.


Powerful, 32-bit fully programmable, versatile, and expandable BACnet® building controllers with built-in web server.


Powerful, 32-bit fully programmable, versatile, and expandable BACnet® building controllers.

The Reliable Controls MACH-ProView™ LCD is a powerful and elegant BACnet Building Controller (B-BC) and BACnet Operator Display (B-OD) that provides a plenitude of attractive, high-resolution graphical interfaces to access, control, and monitor the comfort and energy of any space.

A complement to any room, the Reliable Controls SMART-Sensor™ Electronic Paper Display (EPD) delivers a modern networked-sensor solution that allows you to connect with up to 10 configurable parameters related to your space.

Designed to evolve with your building and accommodate a wide range of variable air volume (VAV) and room control applications, the Reliable Controls RC-FLEXair® is a BACnet Building Controller (B-BC) loaded with data-processing power that will inspire confidence in your built environment for years to come. With its generous database and triple-core processor, the dual Ethernet- connected RC- FLEXair advanced VAV controller can handle the most demanding programmed sequences and data analysis with ease. Configurable with multiple input/output options, the RC-FLEXair is a truly dynamic controller that will empower you to be better by design.