Maintaining a complex heating and cooling system can be a major challenge. What happens when one piece of the puzzle malfunctions? Get real-time alerts for HVAC events that require your attention. These sensors can notify you about abnormal temperatures in ducts, within your A/C unit, or at boilers. Our award-winning line of 80+ sensors can also monitor many other variables for concerning symptoms—including motor power draw and vibration. You can even monitor air velocity.. Always know your heating and cooling systems are functioning properly with Monnit Wireless Sensors for remote HVAC monitoring.