---
product_id: 698287203
title: "Smart Home Energy Monitor, Accurate Real-Time Energy Consumption Tracking with Home Assistant, Electricity Usage Monitor with 16X Circuit Sensors"
brand: "refoss"
price: "€ 457.12"
currency: EUR
in_stock: true
reviews_count: 5
category: "Refoss"
url: https://www.desertcart.hr/products/698287203-smart-home-energy-monitor-accurate-real-time-energy-consumption-tracking
store_origin: HR
region: Croatia
---

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

**Brand:** refoss
**Price:** € 457.12
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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?** € 457.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/698287203-smart-home-energy-monitor-accurate-real-time-energy-consumption-tracking)

## 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: One of the best energy monitor systems - 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: Super Easy to Install, Excellent App, and Works Great with Home Assistant - I couldn’t be happier with the Refoss EM-16! I love having a smart home and I enjoy adding tech that makes our lives easier, is simple to use, and just makes sense. I shopped around for an energy monitoring system for a while and decided the Refoss EM16 was the way to go. This was the right choice! The installation was far simpler than I expected. The included headphone-jack style connectors made wiring a breeze — no tiny screws or fiddly clamps to deal with. I had read reviews that talked about the extra wire since these can’t be trimmed, but as you can see in the before and after photos of the breaker panel, the slack is easily manageable. Refoss labels all the clamps to make attaching clamps and connecting to the unit a breeze. I took my time to be cautious, and I was still able to hook everything up and have it running in two hours, without any special tools. The EM16’s connection to my WiFi is strong and it hasn’t dropped at all. Refoss gives you all you need to connect your power wires including the wire nuts and extra wire. I was extremely happy and slightly surprised to see how well the instructions are written and easy to follow; no missing words or “lost in translation” instances at all. To make your install fast and easy, plan out in advance what circuits you want to monitor. You can also use a single clamp across two wires (in the case of dual breaker circuits like A/C or hot water heater), allowing you to use more clamps to monitor more circuits. The app itself is outstanding. It guided me step-by-step through setup and immediately started giving me clear, real-time data. The interface is clean and intuitive, making it easy to see my usage at a glance and drill into details when I want to. You can set alerts and automations easily through the app. You can also plug in your price per kWh for power and the app will tell you what your current cost are (see pics). This even helped me to find I had two circuit breakers mislabeled and one isn’t even connected to anything! Our home is only 7 years old and that wasn’t found by two previous home inspections! Since I love home automation, integration with Home Assistant is important to me and the process with Refoss was seamless. Once connected, it showed up right away and has been rock-solid ever since. I can automate notifications, track energy trends, and even display the data on my dashboards with minimal extra effort. I even have automations to turn lights different colors when the clothes washer or dryer is done so we don’t forget to dry and fold them. Overall, the Refoss EM-16 is a fantastic product if you want reliable energy monitoring with minimal setup hassle and full smart-home integration. I only wish I had bought and installed this sooner! Highly recommended!

## 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

![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/71BkferqpzL.jpg)

## Questions & Answers

**Q: Does the Refoss EM16P work without Home Assistant?**
A: Yes, it works standalone with its own app for real-time circuit data, history, and solar monitoring. Home Assistant integration is optional but adds automations, custom dashboards, long-term logging, and circuit-level triggers.

**Q: Why is my electricity bill so high?**
A: Appliances like refrigerators, dryers, or EV chargers quietly use a lot of power. This smart power tracker monitors real-time usage per circuit, helping identify high-energy devices and reduce electricity costs by 10–20%.

**Q: I don’t want my energy data sent to the cloud. Is it safe?**
A: Yes. All data stays local. Access and manage it via Web UI or local API—no cloud, full control, and easy integration for smart home or automation setups.

**Q: Am I wasting solar energy?**
A: Excess solar power often goes unused. A solar power optimizer tracks solar production and automatically directs surplus energy to appliances such as heat pumps or dishwashers, boosting self-consumption and reducing electricity costs.

**Q: How can I spot energy-hungry or faulty appliances?**
A: The fastest way to get an ROI is eliminating Vampire Loads — devices that draw power even when “off.” Refoss alerts you to unusual or peak consumption so you can fix them before they drive up costs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ One of the best energy monitor systems
*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.

### ⭐⭐⭐⭐⭐ Super Easy to Install, Excellent App, and Works Great with Home Assistant
*by K***. on 19 September 2025*

I couldn’t be happier with the Refoss EM-16! I love having a smart home and I enjoy adding tech that makes our lives easier, is simple to use, and just makes sense. I shopped around for an energy monitoring system for a while and decided the Refoss EM16 was the way to go. This was the right choice! The installation was far simpler than I expected. The included headphone-jack style connectors made wiring a breeze — no tiny screws or fiddly clamps to deal with. I had read reviews that talked about the extra wire since these can’t be trimmed, but as you can see in the before and after photos of the breaker panel, the slack is easily manageable. Refoss labels all the clamps to make attaching clamps and connecting to the unit a breeze. I took my time to be cautious, and I was still able to hook everything up and have it running in two hours, without any special tools. The EM16’s connection to my WiFi is strong and it hasn’t dropped at all. Refoss gives you all you need to connect your power wires including the wire nuts and extra wire. I was extremely happy and slightly surprised to see how well the instructions are written and easy to follow; no missing words or “lost in translation” instances at all. To make your install fast and easy, plan out in advance what circuits you want to monitor. You can also use a single clamp across two wires (in the case of dual breaker circuits like A/C or hot water heater), allowing you to use more clamps to monitor more circuits. The app itself is outstanding. It guided me step-by-step through setup and immediately started giving me clear, real-time data. The interface is clean and intuitive, making it easy to see my usage at a glance and drill into details when I want to. You can set alerts and automations easily through the app. You can also plug in your price per kWh for power and the app will tell you what your current cost are (see pics). This even helped me to find I had two circuit breakers mislabeled and one isn’t even connected to anything! Our home is only 7 years old and that wasn’t found by two previous home inspections! Since I love home automation, integration with Home Assistant is important to me and the process with Refoss was seamless. Once connected, it showed up right away and has been rock-solid ever since. I can automate notifications, track energy trends, and even display the data on my dashboards with minimal extra effort. I even have automations to turn lights different colors when the clothes washer or dryer is done so we don’t forget to dry and fold them. Overall, the Refoss EM-16 is a fantastic product if you want reliable energy monitoring with minimal setup hassle and full smart-home integration. I only wish I had bought and installed this sooner! Highly recommended!

### ⭐⭐⭐⭐ Recommended
*by Z***K on 25 January 2026*

Overall a good product after monitoring for a few hours. The app could be more user friendly and organized a bit better. Like some others have said some sensors are wired backwards and will give you a negative value even if installed correctly but is easily overcome with the circuit factor. About half of mine were wired incorrectly. I wish the pig tails were a bit longer to give more options on where to mount the receiver but overall installation was very easy. So far so good, the product is giving me lots of information about energy consumption like it was designed to do. Would recommend

## 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

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-29*