AA wireless duct temperature sensor

Duct Temperature Sensors

Blowing hot air?

Now you’ll always know HVAC performance with the Monnit ALTA® Duct Temperature Sensor. These devices accurately measure ductwork temps while maintaining a sealed environment. If temps spike or fall beyond your preset limits, the sensors alert you (or onsite maintenance techs) via email, text, or call.

High Accuracy in High & Low Temperatures

Wireless sensors in commercial, enterprise, and industrial-grade housings, and a Power over Ethernet (PoE) sensor are available for duct monitoring. Each duct temp sensor features a probe temperature range of -40°C to 150°C (-40°F to 302°F) and an NTC-type thermistor with UL-listed plenum cable for superior accuracy.

Proactive duct monitoring prevents costly damage (e.g., frozen pipes) while keeping occupants comfortable.

Monnit HVAC Monitoring Solutions can help you not only be reactive to alerts on your mobile device, but we can also help you predict the need for HVAC system maintenance and schedule downtime for service when it’s convenient.

Protect facilities, occupants, and assets with one of the duct temperature sensors below.

Wireless Duct Temperature Sensor - AA Battery Powered
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Enterprise Wireless

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Wireless Duct Temperature Sensor - Coin Cell Powered
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Commercial Wireless

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Industrial Wireless Duct Temperature Sensor
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Industrial Wireless

  • Industrial Battery Powered
  • Up to 7 Years Battery Life
  • Specifications

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PoE Sensors
PoE•X Duct Temperature Sensor
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PoE•X - Power over Ethernet

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Which Sensor is Right For Me?

  • Enterprise AA-battery powered: Our most popular type is ideal for typical commercial & enterprise environments, such as server rooms. A 1,200+ ft. range readily covers most facilities.
  • CC-battery powered: Compact sensor is great for space-restricted areas such as control cabinets or cold storage.
  • Industrial: Sensor's weatherproof, NEMA-rated enclosure withstands demanding indoor/outdoor use, e.g., warehouses & production facilities.
  • PoE•X: Power over Ethernet sensors integrate with a building's PoE network; it can also be used with a standard Ethernet infrastructure & powered via an optional AC adapter.
Still not sure which sensor type to choose? Visit our Sensor Comparison page.



2,000+ ft. Range through 18+ Walls
Up to 12 Years of Battery Life
Automated Data Logging


Unbeatable Range Eases Networking
Dependable, Worry-free Operation
Streamlined Compliance & Data Analysis

How Monnit Sensors Work

how Monnit remote monitoring works

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