---
product_id: 248601656
title: "Sense Flex Home Energy Monitor"
price: "€ 695.10"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.gr/products/248601656-sense-flex-home-energy-monitor
store_origin: GR
region: Greece
---

# Monitors up to 2 circuits (120V/240V) Real-time remote monitoring via iOS/Android/web Supports solar, generator & 400A split-service systems Sense Flex Home Energy Monitor

**Price:** € 695.10
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Empower your home with smart energy mastery — never miss a watt!

## Quick Answers

- **What is this?** Sense Flex Home Energy Monitor
- **How much does it cost?** € 695.10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/248601656-sense-flex-home-energy-monitor)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Total Home Insight:** Identifies device usage patterns so you know when lights are left on or when family members arrive home—boosting efficiency and security.
- • **Seamless Remote Access:** Monitor your home’s energy consumption anytime, anywhere with sleek apps on your phone or browser.
- • **Future-Proof & Flexible:** Supports solar panels, generators, and complex 400A split-service systems—perfect for the eco-conscious, tech-savvy homeowner.
- • **Precision Energy Tracking:** Measures both voltage and current for ultra-accurate wattage readings, unlike cheaper models that guess voltage.
- • **Custom Alerts for Peace of Mind:** Set notifications for critical devices like sump pumps or well pumps to avoid costly disasters before they happen.

## Overview

The Sense Flex Home Energy Monitor is a professional-grade device that tracks your home’s electrical usage with high precision by measuring both voltage and current. It supports up to two 120V/240V circuits and integrates with solar, generator, and 400A split-service systems. With real-time monitoring via iOS, Android, and web apps, plus customizable alerts for critical appliances, it empowers homeowners to optimize energy use, save money, and enhance home security. Installation requires access to the main electrical panel and some technical know-how.

## Description

Sense Flex Home Energy Monitor - desertcart.com

Review: Very easy to install - I am an Electrician and decided to buy this monitor for my home with solar. I hardly write reviews but I am rather impressed with this monitor. First off, it's extremely easy to install. It took me about 15min. However this is what I do for a living so I would say 30min to 1 hour install time if you're not used to being in an electrical panel. If you're handy with tools you can handle the install. If you're not handy at all I would recommend getting someone to install it. You do have to go into the main electrical panel and there are dangers if you have no clue about Electricity. The second point I wanted to make, This unit measures the voltage as well as current. This makes the unit more accurate and I can attest to this. My inverter was only a few watts off of what Sense was reading. The sense uses the current sensors and measures the voltage. The formula for Watts is Voltage multiplied by current. I know some cheaper models will not measure voltage and it just assumes it's 240V, your Voltage can vary + or - 10 volts or more. Measuring the actual voltage makes it much more accurate. All in all I think it's a good unit and if you're on the fence I would recommend it. The only thing I do not like about the sense is it would be nice to have more ports for more current sensors. For most people this unit does the Job. Thanks.
Review: Installation was very difficult due to poor wifi issues - The device seems very practical on face value, however implementation is lacking. The physical installation was a breeze, however getting it to work on a mesh network was extremely time consuming. I moved routers around, made a special guest network, made sure my network was broadcasting at 2.4gh... and nothing worked. The sense device would connect and then drop. Dozens of attempts... did I mention I spent hours on this? In the end I bought a crappy router that only broadcasts in 2.4ghz. At first it did not work, turns out my router was TOO close to the antenna, a problem noted on forums by other users, so after I moved the router further away it finally works, and has been steady for 24 hours now. It has not mapped any devices in this time. A further complication was with connecting the solar add on to Sense. I tried everything, attaching the sensors at several points on my solar system/electrical panels. I wasted the better part of two days trying to get sense to work with my solar system, but it kept hanging on the software recognition of my solar system. I put in a complaint to Sense, and they just had to do something on their end to enable solar. There was nothing in the installation literature where you had to go beg for them to activate the solar detection part of their device. I wasted hours when they simply had to enable it on their end. I wasted a weekend getting this going, any energy savings that this might get me is offset by the relatively steep cost of the sense device and the time it took to get it actually working.

## Features

- PURCHASING THE SENSE HOME ENERGY MONITOR AND FLEX SENSORS allows you to monitor up to two 120V/240V circuits, monitor your generator, solar or 400A split-service system.
- SENSE SAVES: Sense saves you energy and money by providing insight into your home's energy use and activity. NOW SUPPORTING TIME-OF-USE RATE PLANS.
- SEE WHAT’S UP. KNOW WHAT’S ON: Track how much electricity you’re using, what time your kids got home, or when someone leaves the basement light on. Sense identifies patterns in your energy use to help your family be more efficient, informed, and secure.
- MONITOR YOUR HOME’S ENERGY USE FROM ANYWHERE: Real-time data through our iOS, Android, and web apps.
- AVOID DISASTER: Set custom notifications for critical devices, like your sump pump, well pump, or flat iron. Sense is not currently available or compatible outside the United States and Canada.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sense |
| Part Number | NFBB-ASSY |
| Item Weight | 2.14 pounds |
| Product Dimensions | 7 x 7 x 9 inches |
| Item model number | NFBB-ASSY |
| Color | White |
| Style | Flex Energy Monitor |
| Item Package Quantity | 1 |
| Included Components | 2 Sets of Current Sensors (4 pcs), Antenna, Power Cable, Sense Home Energy Monitor |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Sense Flex Home Energy Monitor - Image 1](https://m.media-amazon.com/images/I/51i05ycv8GL.jpg)
![Sense Flex Home Energy Monitor - Image 2](https://m.media-amazon.com/images/I/71iGf4oeB5L.jpg)
![Sense Flex Home Energy Monitor - Image 3](https://m.media-amazon.com/images/I/61eiSCvCNsL.jpg)
![Sense Flex Home Energy Monitor - Image 4](https://m.media-amazon.com/images/I/71sHCsGUn+L.jpg)
![Sense Flex Home Energy Monitor - Image 5](https://m.media-amazon.com/images/I/71CrCrhw2cL.jpg)

## Questions & Answers

**Q: Can this be used offline, i.e. with no internet connection?**
A: While Sense store and process some data locally, this capacity is limited. In order to function as expected, it is recommended that Sense is consistently connected to your wifi network. In the future, we would like to develop a local-only solution, but we are not quite there yet.

**Q: I have a main panel outside which feeds two 200 amp sub-panels inside.  Where do I install the clamps and the breaker?**
A: You should install Sense in the main panel.  Sense tech support is very responsive.  I would confirm this with them.  They helped me before I had purchased the unit and continued helping me getting the system installed.

**Q: If it only monitors the mainhow does it tell if i am uisng a hairdryer or ac, this make no sense?  do not say ai, ai needs data and it has only a sum**
A: It tries to learn the power profile of each appliance.   When you turn your hair dryer on, the current through the main changes by a somewhat stable amount and in a typical way.  Let's say in increases by 14.2 amps immediately at startup and then stabilizes 1.5 seconds later at 10.4 amps.  After it sees this a few times, it learns the pattern.  Once it has the pattern, it watches for near identical changes to the main current and assumes its the same device being used.

**Q: Can sense export the information into an excel file or .csv and send on some particular schedule to an ftp or email? send in some form of a flat file**
A: Not exactly in the way you're talking about.
Date	Minimum_leg0	Maximum_leg0	Sustained_minimum_leg0	Sustained_maximum_leg0	Minimum_leg1	Maximum_leg1	Sustained_minimum_leg1	Sustained_maximum_leg1
10/20/2022 19:15	40.74	124.19	123.98	124.12	40.45	124.18	123.94	124.12
10/22/2022 4:05	106.29	125.48	125.17	125.35	105.96	125.3	125	125.19
10/24/2022 13:22	109.54	125.44	125.01	125.21	109.3	125.46	124.91	125.16
10/31/2022 18:38	95.05	124.4	124.08	124.22	94.83	124.41	124.13	124.26
11/1/2022 4:12	87.25	128.56	125.05	126.04	87.56	128.55	125.02	126.02
However, you can export some things in a CSV file.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to install
*by J***S on October 8, 2022*

I am an Electrician and decided to buy this monitor for my home with solar. I hardly write reviews but I am rather impressed with this monitor. First off, it's extremely easy to install. It took me about 15min. However this is what I do for a living so I would say 30min to 1 hour install time if you're not used to being in an electrical panel. If you're handy with tools you can handle the install. If you're not handy at all I would recommend getting someone to install it. You do have to go into the main electrical panel and there are dangers if you have no clue about Electricity. The second point I wanted to make, This unit measures the voltage as well as current. This makes the unit more accurate and I can attest to this. My inverter was only a few watts off of what Sense was reading. The sense uses the current sensors and measures the voltage. The formula for Watts is Voltage multiplied by current. I know some cheaper models will not measure voltage and it just assumes it's 240V, your Voltage can vary + or - 10 volts or more. Measuring the actual voltage makes it much more accurate. All in all I think it's a good unit and if you're on the fence I would recommend it. The only thing I do not like about the sense is it would be nice to have more ports for more current sensors. For most people this unit does the Job. Thanks.

### ⭐ Installation was very difficult due to poor wifi issues
*by T***A on March 8, 2022*

The device seems very practical on face value, however implementation is lacking. The physical installation was a breeze, however getting it to work on a mesh network was extremely time consuming. I moved routers around, made a special guest network, made sure my network was broadcasting at 2.4gh... and nothing worked. The sense device would connect and then drop. Dozens of attempts... did I mention I spent hours on this? In the end I bought a crappy router that only broadcasts in 2.4ghz. At first it did not work, turns out my router was TOO close to the antenna, a problem noted on forums by other users, so after I moved the router further away it finally works, and has been steady for 24 hours now. It has not mapped any devices in this time. A further complication was with connecting the solar add on to Sense. I tried everything, attaching the sensors at several points on my solar system/electrical panels. I wasted the better part of two days trying to get sense to work with my solar system, but it kept hanging on the software recognition of my solar system. I put in a complaint to Sense, and they just had to do something on their end to enable solar. There was nothing in the installation literature where you had to go beg for them to activate the solar detection part of their device. I wasted hours when they simply had to enable it on their end. I wasted a weekend getting this going, any energy savings that this might get me is offset by the relatively steep cost of the sense device and the time it took to get it actually working.

### ⭐⭐⭐⭐ Great device but headaches with install
*by R***S on February 7, 2023*

I purchased 2 of these units, one for each of two homes. FIRST: Each device has to be on its own account, you cannot have them both on the same account. SECOND: When setting them up, BOTH TIMES I got a message "cannot talk to server" (even though the self-test passed and said all network comms were good for BOTH units). I had to e-mail tech support, they said "your unit was previously associated with another e-mail address". Really? This tends to suggest that the units I got were previously used. I find this unsatisfactory. I purchased both of these units with extra probes. One set for solar, and one for a dedicated hot tub circuit at the other house. In BOTH cases, NEITHER DEVICE would recognize the load on the second set of probes. About 2 days later, the unit installed with solar finally self-recognized the solar panel circuit and started working. However, despite following the instructions exactly, the probes set up to monitor a hot tub dedicated circuit would NOT work (meaning the unit will not recognize the load). How it cannot detect a five thousand watt load is beyond me. After 4 days it still won't recognize the load. I find this unsatisfactory also. The good: Once it starts working, the unit does a very nice job of monitoring power usage in your home. It takes it a while to learn what devices are, to be expected. One nice thing, you can "export" data to Excel for more detailed tracking and analysis. The "meter" function shows you real-time usage. In my case, I was able to see just how often my sump pumps were operating. So, once installed, I am pretty happy with the unit. The interface has some nice graphics that allow you to see what various devices use, how much solar is offsetting the grid draw, etc. I would suggest that Sense engineers clean up some of the installation issues (the app issues). Especially for units that monitor a second circuit (solar and/or a dedicated circuit). Neither of my units would detect the second circuit load despite following instructions exactly. Due to the message "cannot talk to server", I was not able to set up an account for EITHER device without assistance (this is totally unsatisfactory). Also, the "help" is via e-mail; there is no "chat" to get a more immediate response. The support is offshore, and I'd rate it mediocre at best. I am sure the support people are not too knowledgeable with regard to power. One technical thing that would be nice to display: power factor. Certainly this would be easy to add (it’s good info for people who are into power engineering). Note: I am an electrical engineer with 50+ years of experience, including 30+ years of power engineering. Physically installing the unit was easy for me; however, for most, it should be left to a pro.

## Frequently Bought Together

- Sense Flex Home Energy Monitor
- Sense Energy Monitor - Track Electricity Usage in Real Time and Save Money - Meets Rigorous ETL/Intertek Safety Standards
- Emporia Gen 3 Smart Home Energy Monitor with 16 50A Circuit Level Sensors | Home Energy Automation and Control | Real Time Electricity Monitor/Meter | Solar/Net Metering

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-01*