Contact Us

System Sensor takes pride in serving our customers and your inquiries. The following options are available to reach us in the United States. If you need to reach a System Sensor location outside of the United States, please click on the Other Locations link.

Customer Service: 800/736-7672, press 1
System Sensor’s Customer Service department is staffed
from 7:30 AM - 5:00 PM Central Time, Monday - Friday.
After hours, please leave a message. Your call will be returned promptly during regular business hours.

Technical Service: 800/736-7672, press 2
System Sensor’s Technical Service department is staffed
from 7:30 AM - 5:00 PM Central Time, Monday - Friday.
After hours, please leave a message. Your call will be returned promptly during regular business hours.

Customer Service Fax: 630-377-6495

Regional Sales Territories (pdf)
HVAC Sales Representatives Map (pdf)

Directions to St. Charles, IL Headquarters
From OHare Airport (pdf)
From Midway Airport (pdf)

Other Locations
Locations

E-mail
Customer Service
Technical Service

Subscription Center

For additional information outside of the United States, see Locations.

Career Opportunities at System Sensor

Thank you for your interest in a career with System Sensor.
To search and apply for System Sensor and Honeywell positions online click here.