Building Sensor with HVAC module, supply probe, and return probe
Smart HVAC Monitoring

Turn every installation into recurring revenue.

Add proactive monitoring to your service offering. Track supply, return, and room temperatures in the cloud, watch Delta T over time, and get alerts when performance changes.

Buy Building Sensor + HVAC $249.88 HVAC module $75 How it works
The HVAC module is included with a new Building Sensor. Extra modules are $75. One module per unit.
  • ✓ Live supply, room, and return temperatures
  • ✓ Delta T tracking and performance alerts
  • ✓ Email and text when conditions leave the range you set
  • ✓ Remote visibility after the technician leaves
Remote monitoring for HVAC professionals. Residential, offices, retail, and warehouses.

Stay ahead of HVAC problems.

Monitor

Caltuck tracks supply, return, and room temperatures 24/7.

Get alerted

Receive email or text when conditions move outside the range you set.

Contact

You call the customer proactively, before they notice a problem.

Take action

Inspect, service, and resolve before it becomes a bigger problem.

Live temperature readings

SupplyLeaving-air temperature
RoomAmbient at the unit
ReturnComing-back air
Delta TPerformance split

Readings stay in the cloud so you can track performance over time and get alerts based on the delta between supply and return.

How it works

Monitor

Put probes in supply and return. The Building Sensor still reads room temperature. Caltuck watches all three 24/7.

  • Supply, return, and room on the screen and in the cloud
  • Delta T shows if the system is actually heating or cooling
  • History you can pull up after the technician leaves

Get alerted

Set the range that matters for that unit. When temperature or Delta T leaves it, designated people get email or text.

  • Alerts include the actual reading
  • Catch a failed changeover or a unit that is not keeping up
  • Know if the sensor goes offline

Contact

Call the customer with data, not a guess. You reach out before they notice the space is too hot or too cold.

  • A reason to call that is backed by numbers
  • See supply, return, and Delta T before you roll a truck
  • Turn a one-time install into an ongoing relationship

Take action

Inspect, service, and fix the unit before a small drift becomes a callback or a failed system.

  • Reduce guesswork on the next step
  • Build monitoring into maintenance agreements
  • Stay connected to the equipment after you leave

Turn a service call into an ongoing relationship.

Be proactive

Identify changing conditions before the customer calls.

Stay connected

Keep visibility into HVAC performance after your technician leaves.

Add value

Create a reason to reach out with real data.

Reduce guesswork

See supply, return, and Delta T remotely before deciding the next step.

Build loyalty

Provide ongoing monitoring as part of maintenance agreements.

Where it goes to work

Residential HVAC monitoring

Residential

Office HVAC monitoring

Offices

Retail HVAC monitoring

Retail spaces

Warehouse HVAC monitoring

Warehouses

Technical specifications

SetupBuilding Sensor with HVAC module
Price$249.88 with HVAC included. Extra HVAC module $75
ProbesSupply air and return air
Also readsRoom temperature and humidity
DisplaySupply, Room, Return, and Delta T
Typical useRooftop units, air handlers, mechanical rooms, service accounts
ReportingCloud history plus alerts when performance changes
PowerIncluded power adapter
NetworkingConnects to the Caltuck cloud
Managementcaltuck.cloud and local web interface

FAQ

Supply air, return air, room temperature, and Delta T. You get a text or email when those readings leave the range you set.

No. You buy the hardware. Cloud alerts come with it. Use that visibility in maintenance agreements if you want recurring work.

Yes. The HVAC module is $75 and plugs into a Building Sensor you already own. One module per unit.
Ask a question Review specs

Ask about HVAC monitoring

Tell us about the equipment and how many units you want to cover.

Example: two rooftop units, one air handler, or a maintenance route.

We will never share your info.

Contact Us

Address:
8105 W I-25 Frontage Rd Unit 9, Frederick, CO 80516

Phone: (720)-499-0399

Email: info@caltuck.com

Business Hours

  • Monday to Thursday: 7:00am - 5:00pm
  • Friday: 7:00am - 3:00pm
  • Saturday and Sunday: Closed

Connect to Our Cloud

Our automated monitoring and cloud services provide peace of mind and a single pane of glass for your properties and systems.

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Get Support

Our 24 hour ticketing system lets you request help on your schedule. Our support staff takes pride in resolving issues quickly.

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Veteran owned

We are a veteran owned company built on discipline, integrity, and commitment. We are proud to work with other veterans who bring teamwork and a mission focused mindset to every project.


Our Promise

At Caltuck, we go above and beyond to ensure our customers receive unmatched integrity and top-tier quality. We prioritize the best policies, products, and processes to care for our clients at a level that sets us apart from the competition.