---
product_id: 698287203
title: "Refoss Smart Home Energy Monitor, Accurate Real-Time Energy Consumption Tracking with Home Assistant, Electricity Usage Monitor with 16X Circuit Sensors"
brand: "refoss"
price: "$493.23"
currency: USD
in_stock: true
reviews_count: 5
category: "Refoss"
url: https://www.desertcart.us/products/698287203-refoss-smart-home-energy-monitor-accurate-real-time-energy-consumption
store_origin: US
region: United States of America
---

# 16 circuit sensors for granular tracking Seamless Home Assistant integration 98% accuracy with 36 months data storage Refoss Smart Home Energy Monitor, Accurate Real-Time Energy Consumption Tracking with Home Assistant, Electricity Usage Monitor with 16X Circuit Sensors

**Brand:** refoss
**Price:** $493.23
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower your smart home with real-time energy mastery!

## Quick Answers

- **What is this?** Refoss Smart Home Energy Monitor, Accurate Real-Time Energy Consumption Tracking with Home Assistant, Electricity Usage Monitor with 16X Circuit Sensors by refoss
- **How much does it cost?** $493.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/698287203-refoss-smart-home-energy-monitor-accurate-real-time-energy-consumption)

## Best For

- refoss enthusiasts

## Why This Product

- Trusted refoss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Renewable Ready:** Monitor solar & wind power output live to maximize green energy efficiency.
- • **Real-Time Alerts:** Get instant notifications on unusual power spikes to prevent waste and cut costs.
- • **Smart Home Synergy:** Native Home Assistant compatibility lets you automate and optimize energy use effortlessly.
- • **Intuitive App Control:** Access detailed consumption charts anytime, anywhere via the sleek Refoss app.
- • **Precision Energy Insights:** Track up to 16 branch circuits plus 2 mains with 98% accuracy for data-driven savings.

## Overview

The Refoss EM16 Smart Home Energy Monitor offers professional-grade monitoring with 2 main and 16 branch circuit sensors, delivering 98% accuracy and up to 36 months of detailed energy data. Designed for easy installation and seamless integration with Home Assistant, it provides real-time tracking, smart alerts, and renewable energy monitoring to help you optimize consumption and reduce electricity bills.

## Description

Refoss smart home energy monitor supports 2 main circuit sensors (up to 200A each) and 16 branch circuit sensors (up to 60A each) with easy-to-install clamp design. Keep track of your home's electricity usage anytime, anywhere with the Refoss app. And it accurately monitors the power generation of the solar panel and wind turbine, providing real-time data on the power output. This allows you to optimize renewable energy use, improve energy efficiency and reduce electricity bills with ease. Consumption alerts can be set for each circuit and you will receive alerts of unusual power spikes, and take proactive steps to reduce your electricity bills and save more energy. It also easily accesses detailed electricity cost and usage charts per minute, hour, day, month or year, giving you a deep view of your energy consumption and allowing you to make smarter energy decisions.

Review: I have been trying out the Refoss EM16 Smart Energy Monitor for a while now, and I must say, I'm impressed. It was easy to install—good instructions and helpful online videos meant the whole process was simple and quick. Took about an hour to have everything up and running, and all plugged in to the Refoss app successfully. I like best that this product is so versatile and thoughtful in design. You can just plan and label your circuits ahead of time, and if a clamp is showing up in the negative direction, you can simply reverse it in the app without the need to rewire. If you require additional circuits to be monitored, you can bus their wires together into a CT so long as they're on the same phase. The application is simple to operate, giving real-time monitoring of all the circuits, and detailed energy history by day, week, month, or year. Home Assistant support is where this product really shines. EM16 auto-commands and provides complete local access to all the data of each circuit, enabling advanced automation without the cloud. Solar system owners will love Zero Feed-In Automation—putting extra solar energy to use powering devices such as EV charging points or water heaters rather than returning it to the grid. The recent firmware releases saw the addition of various useful features, including channel merging, export of CSV data, improved dashboards, and inverting CT readings in software. The releases show that Refoss is refining the product according to feedback from users. Overall, the EM16 is a wonderful, budget-friendly energy monitoring system—easy to install, full of data, and ideal for smart home residents as well as anyone wishing to gain better control of and track their home energy usage. Highly recommended.
Review: I’ve been using the Refoss Smart Energy Monitor for a week now, and I’m thoroughly impressed. One of the standout features is its local integration with Home Assistant, which is precisely why I chose this energy monitor. The instructions were straightforward, and the video on the desertcart listing was particularly helpful, guiding me through the entire installation process. It should be relatively easy for anyone with basic electrical knowledge and some handy skills. However, I recommend doing some pre-planning before installation to determine which circuits you want to monitor. There are five L1 circuit sensor, five L2 circuits sensor, and six circuits sensor that can be used on either L1 or L2. You’ll need to choose one or the other. Additionally, you can combine some circuits and use one clamp for them, as long as they don’t exceed the current limit of the circuit sensor. For instance, I combined two kitchen outlets into one, saving me a sensor I used for monitoring a different. For balanced 240V loads like an AC unit or an EV charger, you can use one clamp and then change the circuit factor to 2 in the Refoss app or create a helper in Home Assistant that multiplies the energy usage by 2. This is because with balanced loads, the energy drawn on both lines is the same, which is why it’s called a balanced load. This way, you can save a sensor to monitor another circuit. I highly recommend making a note of which sensors are connected to which circuits to avoid wasting time trying to remember where you connected them. Setting up the energy monitor on the app was a breeze. I simply downloaded the Refoss app, followed its instructions to connect it to Wi-Fi, and updated the software of the energy monitoring module. The Refoss app allows you to monitor live energy usage for each connected circuit and view a history of energy usage for each circuit, broken down by day, week, month, and year which is awesome for using the app on its own. Connecting to Home Assistant was equally easy. I searched for the Refoss add-on, and the energy monitor was automatically detected on my network. It brought over all the entities shown in the Refoss app and then I got to setting up everything in home assistant. Overall, I highly recommend this affordable and reliable whole-house energy monitoring system. If you use Home Assistant, this is one of the best options out there that is supported natively through the Refoss addon.

## Features

- HOME ASSISTANT COMPATIBLE - Refoss EM16 Wi-Fi Smart Energy Monitor is now compatible with home assistant. Update the latest Firmware in Refoss app and experience seamless integration into your smart home
- Refoss Smart Home Energy Monitor - Supports 2 main circuit sensors (up to 200A each) and 16 branch circuit sensors (up to 60A each) with easy to install clamp design. Compatible with single-phase 2-wire systems, single-phase 3-wire systems and three-phase 4-wire Wye systems with neutral to ground (TN or TT) (not Delta). Installs easily into most home circuit panels
- 24/7 Energy Monitoring - Track your home's electricity usage anytime, anywhere with the Refoss app. Easily monitor power, current, voltage and power factor for major appliances such as air conditioners, ovens and water heaters. Track electricity usage data in real time to see what's working and identify what consumes energy
- Complete energy data at your fingertips: The Refoss energy monitor offers 98% accuracy and can store up to 36 months of data. Easily access detailed graphs of electricity consumption and costs per minute, hour, day, month or year, giving you a deep view of your energy consumption and allowing you to make smarter energy decisions
- Smart Consumption Alerts: Identify energy-intensive devices and set the usage lens for each circuit. You'll receive alerts of unusual power spikes and take proactive steps to reduce your electricity bills and save more energy
- Reduce electricity costs and maximize efficiency: The smart energy meter accurately monitors the power generation of solar panels and wind turbines, providing real-time data on power output. This allows you to optimize renewable energy use, improve energy efficiency and reduce electricity bills with ease

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJNV3GPR |
| ASIN  | B0DJNV3GPR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #183,637 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #114 in Power Monitors |
| Color | Orange + white |
| Customer Reviews | 4.5 4.5 out of 5 stars (164) |
| Customer reviews | 4.5 4.5 out of 5 stars (164) |
| Date First Available | 10 December 2024 |
| Date First Available  | 10 December 2024 |
| Included components | Home Energy Monitor, WiFi Antenna Mount, 2 x 200A Current Transformer, 16 x 60A Current Transformer, 2 x 3.5mm Isolation Socket, 16 x 2.5mm Insulation Socket, 3 x Wire Nut, 3 x Extra Wire, Wire Harness, User Manual |
| Item Package Quantity | 1 |
| Item Weight | 1.94 Kilograms |
| Item model number | EM16 |
| Item model number  | EM16 |
| Manufacturer | Refoss |
| Manufacturer  | Refoss |
| Part number | EM16 |
| Product Dimensions | 11.43 x 8.84 x 2.79 cm; 1.94 kg |
| Product Dimensions  | 11.43 x 8.84 x 2.79 cm; 1.94 kg |

## Images

![Refoss Smart Home Energy Monitor, Accurate Real-Time Energy Consumption Tracking with Home Assistant, Electricity Usage Monitor with 16X Circuit Sensors - Image 1](https://m.media-amazon.com/images/I/71H84Z2uP6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 28 October 2025*

I have been trying out the Refoss EM16 Smart Energy Monitor for a while now, and I must say, I'm impressed. It was easy to install—good instructions and helpful online videos meant the whole process was simple and quick. Took about an hour to have everything up and running, and all plugged in to the Refoss app successfully. I like best that this product is so versatile and thoughtful in design. You can just plan and label your circuits ahead of time, and if a clamp is showing up in the negative direction, you can simply reverse it in the app without the need to rewire. If you require additional circuits to be monitored, you can bus their wires together into a CT so long as they're on the same phase. The application is simple to operate, giving real-time monitoring of all the circuits, and detailed energy history by day, week, month, or year. Home Assistant support is where this product really shines. EM16 auto-commands and provides complete local access to all the data of each circuit, enabling advanced automation without the cloud. Solar system owners will love Zero Feed-In Automation—putting extra solar energy to use powering devices such as EV charging points or water heaters rather than returning it to the grid. The recent firmware releases saw the addition of various useful features, including channel merging, export of CSV data, improved dashboards, and inverting CT readings in software. The releases show that Refoss is refining the product according to feedback from users. Overall, the EM16 is a wonderful, budget-friendly energy monitoring system—easy to install, full of data, and ideal for smart home residents as well as anyone wishing to gain better control of and track their home energy usage. Highly recommended.

### ⭐⭐⭐⭐⭐ Review
*by S***E on 8 September 2025*

I’ve been using the Refoss Smart Energy Monitor for a week now, and I’m thoroughly impressed. One of the standout features is its local integration with Home Assistant, which is precisely why I chose this energy monitor. The instructions were straightforward, and the video on the Amazon listing was particularly helpful, guiding me through the entire installation process. It should be relatively easy for anyone with basic electrical knowledge and some handy skills. However, I recommend doing some pre-planning before installation to determine which circuits you want to monitor. There are five L1 circuit sensor, five L2 circuits sensor, and six circuits sensor that can be used on either L1 or L2. You’ll need to choose one or the other. Additionally, you can combine some circuits and use one clamp for them, as long as they don’t exceed the current limit of the circuit sensor. For instance, I combined two kitchen outlets into one, saving me a sensor I used for monitoring a different. For balanced 240V loads like an AC unit or an EV charger, you can use one clamp and then change the circuit factor to 2 in the Refoss app or create a helper in Home Assistant that multiplies the energy usage by 2. This is because with balanced loads, the energy drawn on both lines is the same, which is why it’s called a balanced load. This way, you can save a sensor to monitor another circuit. I highly recommend making a note of which sensors are connected to which circuits to avoid wasting time trying to remember where you connected them. Setting up the energy monitor on the app was a breeze. I simply downloaded the Refoss app, followed its instructions to connect it to Wi-Fi, and updated the software of the energy monitoring module. The Refoss app allows you to monitor live energy usage for each connected circuit and view a history of energy usage for each circuit, broken down by day, week, month, and year which is awesome for using the app on its own. Connecting to Home Assistant was equally easy. I searched for the Refoss add-on, and the energy monitor was automatically detected on my network. It brought over all the entities shown in the Refoss app and then I got to setting up everything in home assistant. Overall, I highly recommend this affordable and reliable whole-house energy monitoring system. If you use Home Assistant, this is one of the best options out there that is supported natively through the Refoss addon.

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 1 November 2025*

I self installed this on my 200amp panel and it works very well. Installation was straightforward as long as you’re comfortable doing work inside the panel (make sure the power is off!). It’s been really useful to see where unexpected power draws are coming from, such as a heater in one of my adult children’s rooms that I did not know about! Recommended for all who enjoy having details of what’s happening in their house.

## Frequently Bought Together

- Smart Home Energy Monitor Supports Home Assistant, Real-Time Accurate Energy Consumption Tracking, Electricity Usage Monitor with 16x60A Circuit Sensors, 36-Month History, Solar Metering, 2.4G
- Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/698287203-refoss-smart-home-energy-monitor-accurate-real-time-energy-consumption](https://www.desertcart.us/products/698287203-refoss-smart-home-energy-monitor-accurate-real-time-energy-consumption)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*