SenseSense Logo

See what's up.
Know what's on.®

Sense uses machine learning to detect devices in your home. But what is machine learning and why is it so hard?  Find out how the Sense monitor functions inside a real home with the data science behind device detection.

In addition to monitoring energy use, Sense can report on energy production for homes with solar systems.

Sense uses machine learning to identify the unique electrical signatures of many devices in your home.

It really does! Real users share stories of how they’ve saved energy and money with Sense.

Simple installation.

Sense is a small but powerful computer that installs inside your electrical panel.

Sense should be installed by a licensed electrician. The process usually takes less than 30 minutes.

Two sensors clamp around the service mains and read the current 1 million times per second!

The monitor is powered by a 240 Volt circuit, but only uses about 4 Watts.

Once the monitor is connected, setup is completed in the app.

See Sense In Action.

Watch how we use the Sense monitor inside a real home to help customer Tom M. hunt down energy hogs and get closer to his goal of becoming a net zero energy user.


Good to know.

With a high-resolution sampling rate of 1Mhz, Sense analyzes real-time changes in magnitude, phase, and frequency to identify the unique signatures of devices in your home via our complex machine learning algorithms. For more information on our device detection systems, take a look at this blog article on the topic.

The Sense Home Energy Monitor is compatible with most split-phase 120/240V and 400A split-service residential electrical panels in North America. Individual panels up to 200A are compatible. Click here for more information on multiple panels, busbar panels, and other less typical configurations.

In addition to extensive in-house testing, the Sense monitor has been tested to UL and IEC standards for safety, and certified by ETL/Intertek as safe to install in your home. Intertek is a Nationally Recognized Testing Laboratory (NRTL) and the ETL mark is functionally equivalent to the UL mark.
Sense, if properly installed, also meets all requirements laid out in the 2017 National Electrical Code (NEC). This means the Sense Home Energy Monitor has been through an extensive set of industry standard safety tests to ensure that it is safe to use when plugged into electrical power and safe to use inside an electrical panel. Per section 312.8, the Sense monitor and its current transformers are listed as a system, designed for field installation in a switch enclosure.
Sense also meets FCC Class B standards for electromagnetic interference. All electrical devices emit electrical “noise” (in fact, the electrical noise emitted by the devices in your house is one of the things Sense uses to identify them!) — and the FCC has a strict set of limits and requires extensive testing to make sure they are not exceeded. Sense has passed those tests and should not cause interference with other devices in your house.

Certified to CSA STD C22.2 No. 61010-1
Conforms to UL STD 61010-1
Conforms to UL STD 61010-2-032
Conforms to CAN ICES-3(B)/NMB-3(B)
Conforms to CISPR 32
Conforms to CISPR 35

No. There is only a one-time cost for the Sense energy monitor. Use of the Sense mobile and web apps is included. New features and enhancements are free via app updates and over-the-air software upgrades.

After your Sense monitor is installed and the signal check process is complete, Sense will start pulling in data to feed its device detection algorithms. The device detection process is not immediate; Sense needs to see many on/off event cycles of a device in order start building up a model for it. Most customers will start seeing detections within the first one to two weeks. The first devices identified are often common devices that cycle frequently and consume large amounts of power, like your refrigerator or washing machine. Less commonly used, smaller load, or complex signature devices like coffee makers, televisions, and electric vehicles tend to take longer to find. Please note that due to variances across homes in terms of power quality and in the types of device present, total detection coverage of your entire home is unlikely. To better understand how you can help Sense learn about your home, please see this Help Center article.

Sense Home Energy Monitor.

No subscription fees, 120-day money back guarantee, now shipping to the US and Canada.

As an Amazon Associate, Sense earns commissions from qualifying purchases.

Want to learn more?

Stay up to date. Subscribe now.

Compare solar production to energy consumption with an easy-to-use interface including overlaid graphs and historical trends. Identify energy hogs and find ways to become more efficient.

Sense Solar installs in your panel using two additional sensors on the incoming solar feed.

See solar production and energy consumption side-by-side in a single view.

Maximize your solar investment by shifting energy use to times of peak production.

Every electrical device has a signature, a unique waveform that provides clues as to what it is. Sense uses machine learning to pick these signatures out of the total electrical load being consumed.

Here, an incandescent light turns on.

Now here’s a single agitation cycle on a washing machine.

This is a microwave.

Here's a fridge cycle.

It really does! With energy insights from Sense, real users report savings that show Sense can pay for itself. 

Costly baseboard heating

Other Heater

Last winter my electric bill was astronomical, almost $700/month. I discovered nearly $200 was coming from the electric baseboards in the basement. I was so excited to solve that and ripped them all out. Right now I’m just running a space heater to keep the place warm, but I will be installing a heat pump.

I had a sense problem and would check it nonstop looking at what devices came on and testing everything manually before it was recognized. When all the basement baseboards were on it was almost 11kW!

“Circulating the air” is not worth the price


I had my thermostat set to run the furnace fan for 15 minutes every hour. In my mind it would help circulate the air, in summer it would bring cooler air from the lower level upstairs, and vice versa in winter.

I of course knew there was a cost to this, but I didn’t know how much power the fan consumed. It was a decision made in haste when setting up the thermostat, and because the fan is so quiet there wasn’t much to make me question that setting.

In the Sense app I could see that the furnace fan was +445W when it would turn on, as I mentioned I knew the fan ran to move air around, and that it added to my electric bill, but seeing how much power it used trigger the exercise of calculating out the monthly cost at my electric rate, it’s quite expensive! So I decided I didn’t need to circulate the air after all, at least not with such a high monthly cost.

Sense helped me utilize my solar energy


During the summer, we know the majority of our energy costs are from cooling our home. Temperatures don’t get below 100 until after dark some days. We have solar panels, and I realized through the Sense app that I need to be cooling my house more before dark, while the sun is out!

My Sense app showed me that when the sun is out, we are producing approximately 2000-3900w of energy at any given moment. I can now tell, with the Sense app, that our (geothermal) cooling uses about 1600. I want to use that solar energy instead of electricity. So I start to cool my house down mid afternoon rather than waiting until later when the sun is going down. I am lowering my cooling costs by not needing to pull from the electric grid at all. I never would have realized this without the Sense app!