Standard Products
GreenTrol standard products are available from your factory trained GreenTrol Sales Rep for a wide range of HVAC sensing, control and alarm applications.


The GreenFlow GF series airflow stations provide high quality economical general airflow measurement using advanced Thermal Dispersion (TD) technology for accurate, repeatable NIST traceable airflow and temperature measurement from zero flow (still air) to 2,000 FPM, and from -20° to 160° F [-28.9° to 71.1° C]. The GF series' accurate airflow measurement and flexible programmable alarm capabilities are key elements in the acquisition of LEED credits for Energy and Atmosphere and Indoor Environmental Quality. An integral LCD display provides for local indication of measurement, device configuration and for local alarm status.

The GF-2000 series accepts up to two airflow probes and provides two analog outputs with additional programmable PID capability.

The GF-1000 series is equipped with a single airflow probe and single simple analog output interface.

GreenFlow products are backed by a 12 month limited warranty.



GreenAlert general purpose alarms are excellent solutions for applications that require general purpose local visual alarms and/or remote programmable alarm capabilities. These innovative products are also ideal for the economical retrofit of existing applications not equipped with alarm features. GreenAlert devices are perfect for control systems requiring alarming capability outside of a Building Automation System (BAS), or for LEED designs that require the Outside Air Delivery Credit (EQC1) alarm requirements. GreenAlert devices monitor the analog output of other devices and generate local visual and remote alarms when preset limits are exceeded. GreenAlert products are available with simple fixed alarm thresholds or with fully programmable alarms for Low/High Limit with hysteresis or for dead band operation with upper/lower set points based on percentage of setpoint. GreenAlert devices are backed by a 12 month limited warranty.



The GreenSens family of IAQ sensors permits accurate measurement of CO2, Relative Humidity (RH) and Temperature. GreenSens IAQ sensor products allow acquisition of LEED credits and ensure true demand controlled ventilation in compliance with the Ventilation Rate Procedure (VRP) of ASHRAE Standard 62.1-2007. GreenSens IAQ products support BACnet and Modbus RTU communication protocols. GreenSens CO2 sensors boast a patented continuous self calibration feature that virtually eliminates routine maintenance. Their microprocessor-based designs and industrial grade integrated circuits ensure exceptional accuracy, stability and long term reliability. GreenSens products are available in standard low profile wall mount enclosures and are backed by a 12 month limited warranty.

Call your local GreenTrol Sales Rep for application specific questions, pricing and product availability.


The following registered logos and trademarks are used throughout the GreenTrol website:

BACnet® is a registered trademark of American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).
MODBUS® is a registered trademark of Modbus Organization, Inc.
'USGBC®' and related logo is a trademark owned by the U.S. Green Building Council® and is used with permission.
'LEED®' and related logo is a trademark owned by the U.S. Green Building Council® and is used with permission.

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