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    Call 1-800-658-1864

Who Uses It?

Foodservice and Restaurant Operators

• Virtjoule covers your major systems
• Cellular based units don't depend on wifi or IT support
   - Compressor/Condenser units - Failure monitoring, cycling behavior, energy, alerts, and logging
   - Coolers, Freezers, Boilers - Temperature monitoring, logging, and alerts
   - Refrigerated Trucks & Trailers - Temperature monitoring, logging, and alerts
• Avoid expensive food loss. (blog article)
• Document cooler, freezer, and boiler temperature trends
• Catch problems before they affect your business (blog article)
• Download our food service brochure Food Sevice Flyer

Compressor Condenser Unit
Amperage monitor Compressor/Condenser Units for bad behavior

Walk-in Condenser Unit
Temperature monitor warehouse and walk-in refrigerators and freezers

Refrigerated Truck
Temperature monitor refrigerated trucks to verify and log temperature performance and safety of food products.


• Energy Consultants
• Hospitality - Restaurants, Hotels

Energy Analysts

• Information is everything - There are many companies, large and small, that specialize in energy audits and building re-commissioning. These are intensive studies where good information is invaluable.

• Pre-existing conditions - Any energy audit will start by collecting as much existing information as possible. Virtjoule can quickly, economically, and temporarily gather critical runtime and energy information for an energy audit.

• Pre-existing conditions - Unlike normal usb loggers, Virtjoule's information is nearly real time. Recommissioning studies don't have to wait weeks until the loggers come back to start drawing conclusions.

• Pre-existing conditions - Unlike normal loggers, Virtjoule can be left on for longer periods of time. Equipment can and does operate differently through the seasons. An economizer problem that shows up in spring may not be apparent in the summer. Normal studies can miss critical issues by not monitoring long enough. Because Virtjoule's information is sent out over the cellular network, analysts can watch important behavior throughout the year without returning to the site multiple times.

• No communications link with client or building is necessary -  Virtjoule is a solution partner with Verizon. Each device is its own cellular line and does not depend on the client or building ethernet connection.

• Savings that stick - These days, energy auditors and building re-commissioning specialists are being driven to substantiate the savings claims they make and to show that those savings are captured year after year for HVAC equipment and lighting. The only way that can be done is by monitoring equipment for runtime and electrical loads for usage. Virtjoule provides a very economical way to monitor both small and large equipment without a huge capital budget and project to retrofit monitoring capabilities.

Quick Tour

Virtjoule amperage, temperature, and vibration sensors automatically connect via cellular network. Virtjoule is a Verizon Solution Partner and Verizon is our exclusive cellular service.

• Virtjoule can monitor runtime and cycling behavior via either electricity (amperage), temperature (F or C), or vibration.

Virtjoule monitors electricity, temperature, and vibration
• Monitoring runtime and cycle behavior will give you a lot of information about the health of a machine.

• Virtjoule automatically monitors the health of your machine and will alert you via text, email, or voice, when bad behavior strikes.

• Current sensors (CT's - current transducers) can pick up electrical flow measured in amperage and can be very good at isolating the runtime behavior of a particular component or even the electrical runtime behavior of the whole machine.

• Electrical current transducers can be sized from 5 amps to 800 amps or more.

• The sensor literally sticks or screws onto the machine. It's non-invasive if powered from a 110 outlet.
• Typically just one sensor is needed per machine. Virtjoule has models with 1, 3, or 4 inputs. So it's possible to have a single sensor monitor up to four machines at one time.
• No electrician or plumber needed. Any handy person can install it.
• Each sensor is its own cellular device and cell line, independent from all other sensors.
• Power from 110 outlet or off of 24 VAC from most units.

• The computer room air conditioner above, in Ft. Worth, TX, was the subject of this HPAC Engineering article

Text alerts

Email alerts

Customizable voice alerts



Single Input

$29.95 per month per unit

  • Amperage or vibration monitoring
  • Limited to single input, one CT or one vibration microphone
  • 12 month commitment
  • Includes hardware
  • Includes cellular service
  • Includes monitoring service
  • Customer installs
  • Customer receives alerts
  • Customer has access to web application and alert setup
  • Unlimited email and text alerts
  • Up to 10 callout alerts/month. Higher volume plans available.
  • Volume and 2 yr commit pricing available

Multi-port Temperature

$39.95 per month per unit

  • Temperature monitor up to 4 locations at once
  • 12 month commitment
  • Includes hardware and temperature probes
  • Includes cellular service
  • Includes monitoring service
  • Customer installs
  • Customer receives alerts
  • Customer has access to web application and alert setup
  • Unlimited email and text alerts
  • Up to 10 callout alerts/month. Higher volume plans available.
  • Volume and 2 yr commit pricing available

Multi-port Amperage Monitoring

$49.95 per month per unit

  • Amperage monitor up to 4 machines at once
  • 12 month commitment
  • Includes main sensor, CT's extra at $34.95 each.
  • Includes cellular service
  • Includes monitoring service
  • Customer installs
  • Customer receives alerts
  • Customer has access to web application and alert setup
  • Unlimited email and text alerts
  • Up to 10 callout alerts/month. Higher volume plans available.
  • Volume and 2 yr commit pricing available

Learn More

•  Customer's handyman installs
•  Stick it on and then plug it in or tap the 24 VAC transformer on the unit for power
•  Standard monitoring pricing includes hardware and cellular service. Sensor shipping is additional.
•  Via web app, customer creates entities for company(ies), buildings, and units and assigns a new sensor to each new unit
•  Via web app, customer sets up the kind of alerts they want to receive including timing, days, out-of-hours, non-operation, and over/under cycling alerts
•  Virtjoule Support and help site can give advice to help set up alerts and advise customer on what to look for
•  Customer receives alerts and decides on appropriate response...anything from adjusting thermostat schedules to calling their HVACR service for a repair
•  Virtjoule Support and help site can help customer understand alerts and reports to decide on appropriate response
•  Via the web app, customer can see reports including total run time for the month and total out-of-hours today and for the month.

•  This is an add-on service to standard monitoring
•  Virtjoule turns into the customer's advocate
•  When you don't have the confidence or the time to handle alerts
•  Virtjoule will work with the customer to understand needs and set up alerts
•  Alerts come to Virtjoule support
•  Virtjoule helps makes the determination whether a service call should be made
•  Virtjoule will also notify up to two other individuals, like a store manager or other management, to alert them to the problem and let them know what the plan is for a fix
•  Virtjoule can clear any service call with customer first to avoid service calls the customer is not willing to pay for
•  Customer must provide approval for Virtjoule to act on its behalf
•  Customer must provide contact information, company, names, phone numbers, and email for their service provider
•  Virtjoule will watch sensor results for behavior change that validates the fix occurred and close the loop with the customer
•  Calls are documented
•  Closure is documented
•  Service depends on working Standard Monitoring installation

•  Virtjoule's sensors are easy to install, but the customer might not have ready access to a handyman
•  Customer needs to provide access to the building including ladder, lock keys or combinations, or provide an individual to give access to the equipment
•  In the case of tapping the 24 VAC transformer for sensor power, customer must allow the unit to be shut down for 10-15 minutes.
•  In the case of plug-in power, customer must have a working 110 VAC outlet
•  Travel expenses and per diem charged for travel outside local area
•  Local area is the Colorado Front Range area
•  Virtjoule may outsource installation service to a qualified local service or handyman company depending on availability and location


•  Virtjoule's blog is technical and in-depth. From the articles, you can see how Virtjoule has helped others, how it's done, and what the benefits can be.

Call us!

•  Call us at 1-800-658-1864 with any questions you may have.


Our blog has an enormous amount of information about how the product works. You can see how Virtjoule has benefited customers and brought fault detection, asset protection, and energy savings to many types of businesses.



"You just paid for yourselves for the next three years! You're cost effective, it works, and I understand it."

- Bert Steele, Owner - Niwot Market
Niwot Market is an independent gourmet grocery based in Niwot, CO

"We have seen great benefit on another project and this has led to lower utility bills and reduced wear and tear on equipment."

Tom Newman, Director of Property Management, Freeman Myre
Full service real estate brokerage and property management, Boulder, CO
Virtjoule is monitoring multiple executive office buildings

"You called that one. Thanks for letting us know about the freezer failure."

- Scott Reid, Plant Manager
First LEED certified bowling alley in the U.S., Brooklyn, NY
Brooklyn Bowl partners with and hosts one of the famous Blue Ribbon restaurants at this site.

"If it isn't running, I know it isn't costing me anything. Virtjoule helps me spot problem units."

Al Zuhars, Owner and CEO, AJ Gators
Virginia and North Carolina region sports bar and restaurant chain - Chesapeake, VA

Get In Touch

Call us right away at 800-658-1864 with any questions and let us help you monitor those critical machines.