If you want to see where your home's electricity goes and how much your solar panels actually produce, you need a monitor that measures the whole system, not just one outlet. The Sense SM2 home energy monitor system, listed at USD 199.99 in unused open-box condition, is a solid pick if you're comfortable with a unit whose boxes show storage wear but whose internal components have never been installed or connected.
Quick verdict
The Sense SM2 gives you whole-home energy tracking and solar production monitoring in one package. At the listed price of USD 199.99, it includes the monitor, two main sensor clamps, and two solar sensor clamps, so you're not paying extra for solar capability separately. The catch is the open-box condition: the boxes have been opened, and the original packaging shows visible shelf wear, scuffs, and edge wear. The components themselves are unused.
Who this suits
This suits a homeowner who wants a whole-home energy monitor without buying a separate solar monitor. If you already have solar panels and want to see how much they generate versus how much your home draws, this unit is designed for that. The Sense SM2 also works with Amazon Alexa, so you can ask simple voice questions about your energy use after setup.
What stands out from the listed details
Sense SM2 Home Energy Monitor System w/ Sense Solar Sensors
According to the listing, this system includes the Sense SM2 monitor, two CT150 main current sensor clamps, and two additional Sense Solar sensor clamps-four CT clamps total. That's a complete setup for measuring both the incoming utility feed and your solar output. The unit is described as never installed or used, with all components still in their opened boxes. The original documentation and packaging are included. The main downside is cosmetic: the packaging shows shelf wear from being stored and moved over the years. If you're buying for the product, not the box, that's easy to overlook.
Another standout is the connectivity. The Sense SM2 uses Wi-Fi, which means you'll be able to check your energy data through the Sense app if the device is installed and connected. The compatibility attribute also lists Amazon Alexa, so it can integrate into a voice-controlled home setup.
Meaningful trade-offs
The obvious trade-off is the open-box condition. While the listing clearly states the unit is unused, the box itself has scuffs, edge wear, and other cosmetic damage. If you're buying this as a gift or expect a pristine retail box, this listing will not satisfy that expectation. The photos in the listing show the exact state of the packaging and components, so review those before purchasing.
Another thing to keep in mind is that the listing does not include any installation instructions or setup guide in text form. The original documentation is included, but you'll need to follow that, and you should confirm that the CT clamps fit your home's electrical panel and that your Wi-Fi network is compatible with the Sense SM2. The price is USD 199.99, which is a straightforward listed price for this unused unit with solar sensors included.
Bottom line
If you're okay with an unused open-box unit and the cosmetic condition is acceptable based on the photos, the Sense SM2 with solar sensors gives you a complete home and solar energy monitoring system for USD 199.99. The four CT clamps, Wi-Fi connectivity, and Alexa compatibility make it a strong choice for anyone who wants the whole energy picture in one system.
