This is Sense.

Sense installs in your home’s electrical panel and provides insight into your energy use and home activity through our iOS, Android, and web apps.

Sense Saves.

It really does! With energy insights from Sense, real users report savings that show Sense can pay for itself. Browse or search to see the simple and sometimes amazing ways users have saved.

Sense convinced renters to switch to gas heat

Space Heater 

Our renters were using a space heater in their trailer at night, instead of their propane heat. Neither we nor they realized exactly how much that was costing until we installed Sense…

Water heater savings with Sense

Water Heater

I found out our 20-year-old resistance electric water heater would run for an hour or 2 at 900 watts. I researched water heaters and found one that runs like a heat pump using about…

Sense identified bad furnace relay

Heat Pump – Thermal Zone

We started seeing an increase in our power bills over the Summer months of 2017. It had increased by $150, then up $300 more, by the end of the Summer we had a $900 power bill…

Read more Sense Saves stories

See what's up.
Know what's on.

See how much electricity you’re using, what time your kids got home, or when a basement light comes on. Sense identifies patterns in your energy use to help your family be more efficient, informed, and secure.


Power is knowledge.

Measure solar production versus power consumption. See which appliances use the most energy and how much they’re actually costing you. Track watts like footsteps or miles-per-gallon.

Learn more ›


Simple installation.

Sense is a small but powerful computer installed in your electrical panel by a licensed electrician, usually in less than 30 minutes. Using two clamp-on sensors and a 240V breaker, the Sense monitor samples current and voltage one million times per second to determine where your energy is going.
Learn more ›

About us

Built by the same team that brought speech recognition technology to market. We made it possible for people to talk to their cell phones. Now, we’re making it possible for people to talk to their homes.

Frequently Asked Questions

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.

Sense should only be installed by a licensed electrician. Installation itself is quick and easy, but it requires opening up your electrical panel and connecting current sensors to the service mains. These wires are live, even with your main breaker switched off, and are thus very dangerous. Only a licensed electrician is qualified to work in these conditions. When speaking with your electrician, let them know that Sense is an energy monitor that installs in your electrical panel with two clamp-on current sensors around the mains, and a 240V breaker which Sense uses for its power supply and also to measure voltage on both legs. Unless you have a spare 240V breaker in your panel, your electrician will likely need to provide a new one. You may also wish to share with your electrician this blog post and video to help them get a better idea for what’s required: A set of installation instructions is also included in the package, and available online:

With just two clamp-on current sensors, the Sense Home Energy Monitor takes current and voltage measurements over 1 million times every second. From this incredibly high-resolution data, it derives the electrical signatures of individual devices. In comparison, most “high resolution” smart meters only take measurements every couple of seconds…hardly real time! You can read more about how Sense works in this blog post.

Within the first week of installation, Sense should be able to find some common devices that cycle on and off frequently, like your refrigerator or microwave. Some devices will take longer to identify, until the algorithms have seen enough contextual data to reliably detect them.

There are devices that Sense won’t be able to recognize right away, but as more Sense Home Energy Monitors are installed across the US and Canada, our machine learning algorithms will have more data to generate models from, and the device detection capabilities will just keep growing!

Most likely! Your incoming solar feed must connect directly into your main electrical panel, either through a breaker or a service-side tap.


If solar is set up in a subpanel, the incoming solar feed should be within 46″ of the main panel. This will allow the current sensor cable to reach and connect to the Sense monitor in the main electrical panel. Extension cables are available in lengths of 4′, 12′, 25′, and 40′should your solar feed be further than 46″ from your main electrical panel. These extensions can be combined to achieve larger lengths, but the maximum length should be no more than 80′.

For accurate solar production readings, there should not be any other live circuits connected to the subpanel.

The Sense Solar Monitor is available for purchase here, or you can add solar sensors to your existing Sense Monitor for just $50.

If you aren’t sure if your particular setup will work, please contact our support team.

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.
Even before Sense discovers devices in your home, it’s easy to see how much energy they consume just by turning them on and off and watching the Power Meter in real time. Check this video to learn more. Once Sense completes the signal check process, it will start detecting devices in your home.  Sense is able to identify many electrical devices in typical homes, and we continue to expand our device detection abilities via crowdsourced data as more Sense monitors come online. However, it likely won’t detect everything. Low-wattage consumer electronics like computers, smart devices, and game consoles can be especially tough to track. As we get data from more and more homes, the performance and coverage of our device detection will improve. In the meantime, many of our users have had great success tracking these more challenging loads via our smart plug integration. Learn more about the machine learning technology that undergirds Sense here.

To ensure you have the best experience with Sense, the following compatibility specifications are recommended:

Your home has:

  • A consistent 2.4Ghz Wi-Fi connection. Sense is not compatible with 5Ghz Wi-Fi signals.
  • Its own electrical meter and accessible electrical panel.

Your mobile device runs on iOS or Android and has Bluetooth and Wi-Fi connectivity.

Your electrical panel:

  • Is a split-phase 120/240V residential panel up to 200A.
  • Must have enough space to fit sensor clamps with HxWxD dimensions of 3.375″ x 2″ x .75″ (85.73 x 50.8 x 19.05mm), and an inside diameter of 1”. The Sense current sensors may not be able to fit around busbars. Our sensor cables are 46″ (116.84cm) long and our power cable is 36″ (91.44cm) long.
  • Does not drop below 32°F (0°C) or exceed 122°F (50°C).
  • Is not exposed to water or areas with high condensation (Sense complies with ANSI/IEC 60529 Rated IPx0).

For more information on electrical panel compatibility, check out this support article.
For information on Solar system compatibility, take a look here.

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

At Sense we take security very seriously and we do everything we can to ensure your data is secure. All communications between the Sense monitor, the Sense cloud servers, and Sense apps are encrypted with AES 128-bit encryption and TLS/SSL (HTTPS). Sense uses Amazon Web Services (AWS) for cloud servers and online storage. Personally identifiable information like email address and account information is stored in physically separate systems from any application data. Physical security is managed by Amazon and access to these production systems is limited to a very small group of Sense engineering team members.

Automated systems process the data collected from Sense monitors to detect devices, send notifications, generate report emails, and power the Sense apps. Sense never shares any of this data with 3rd parties without explicit user opt-in on a case-by-case basis (for example, when a utility wishes to provide discounts/services to their customers in exchange for sharing limited power data.) Sense support employees will on occasion need to access some of this data to troubleshoot issues, but again we will only access this data with explicit permission from you.

You can read our full privacy policy here

Sense needs to see devices in their usual context with their regular usage pattern to be able to accurately identify them. That means that “training” Sense by turning devices on/off and labeling them is not an effective method to help Sense learn. You can learn more about the challenges of implementing a “learning” mode here.

While you cannot “train” Sense in such a way, we have introduced a variety of features that take advantage of user input to help improve device detection in your home and for the entire userbase. 

Remember, even without native detections, you can still take advantage of Sense insights. The Power Meter is a fantastic tool that provides a real-time view of your energy consumption. Try turning on and off your devices while watching in the Power Meter, to identify how much they consume. You can do the same for the “Always On” devices in your home, identifying how much they’re costing you every day.