SKU: 56926655866

Refoss Smart Home Energy Monitor, Native Open API & Web UI (No Cloud Required), Real Time Electricity Usage Monitor, Power Consumption Meter Works with Home Assistant & MQTT, Solar Net Metering, ETL

$145.33 $161.48
Save 10%
No.2 Bestseller on northstargunworks.com >

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Refoss Smart Home Energy Monitor, Native Open API & Web UI (No Cloud Required), Real Time Electricity Usage Monitor, Power Consumption Meter Works with Home Assistant & MQTT, Solar Net Metering, ETLLOCAL CONTROL & DATA PRIVACY: Access your home energy monitor data locally via Built in Web UI, Open API, and MQTT without relying on cloud services. Unlike cloud dependent monitors, Refoss ensures your data stays within your home network. Direct local access protects your privacy while giving you 100% full control of your home energy system even during internet outages. NATIVE HOME ASSISTANT & OPENCLAW AI: Experience seamless Native Home Assistant

  • LOCAL CONTROL & DATA PRIVACY: Access your home energy monitor data locally via Built-in Web UI, Open API, and MQTT without relying on cloud services. Unlike cloud-dependent monitors, Refoss ensures your data stays within your home network. Direct local access protects your privacy while giving you 100% full control of your home energy system even during internet outages.
  • NATIVE HOME ASSISTANT & OPENCLAW AI: Experience seamless Native Home Assistant integration right out of the box—no firmware flashing or complex coding required. Featuring ✨NEW✨ OpenClaw Support, it enables AI-driven automation for smarter, real-time energy management and seamless smart home control.
  • MAXIMIZE SOLAR & ZERO FEED-IN AUTOMATION: Designed for solar homes, the power monitor works with the Refoss app and Home Assistant to automatically use surplus solar power. Appliances like EV chargers, washing machines, and water heaters are powered during midday peaks, maximizing solar self-consumption and reducing low-value electricity feed-in to the grid. Optimizes usage and reduces bills.
  • REAL-TIME MONITORING & ±1% ACCURACY: Monitor voltage, current, active power, and power factor of major appliances. Provides ±1% accuracy (200A: 2–200A; 60A: 1–60A) and ±2% at low current. Daily data stored up to 5 years and exportable. With no subscriptions or hidden fees, you get deep historical insights to help you identify every energy-saving opportunity and save 10–20% on monthly bills.
  • SMART ALERTS & CIRCUIT-LEVEL CONTROL: Set usage targets for each individual circuit and receive instant alerts when appliances exceed normal consumption. Refoss app supports automation and peak management to optimize schedules, reduce peaks, and improve efficiency. Real-time electricity usage monitor for circuit-level insights.
  • ETL CERTIFIED & NON-INVASIVE INSTALLATION: ETL certified and compliant with UL 61010 safety standards for safe installation and operation. Supports 2 main circuit sensors (2–200A each) and 16 branch sensors (1–60A each) with easy clamp-on installation. Fits most home circuit panels and includes a 2-year warranty with responsive support for reliable long-term monitoring.

Product description

See whole-home power in one clear system. Without this granularity, you are guessing. You might know your bill is high, but you won’t know that an aging garage refrigerator is drawing excessive power 24/7, or that a “vampire load” is adding $10 to your bill every month while devices are “off.”


  1. Data Privacy Is a Non-Negotiable for You

    Supports JSON-RPC 2.0 via HTTP, Webhooks, MQTT for seamless data exchange and smart device control.

  2. 100% Local Control — Never Leaves Your Network

    Manage your devices from anywhere via browser without any app required.


1 Local Open API 2 Built-in Web UI 3 Native Home Assistant 4 EV Charging 5 Battery Charging

  1. 16 Channels Monitor All Home Circuits

    Monitor home energy use: 2x200A mains + 16x60A branches, track device use from AC to EV chargers.

  2. See Every Appliance’s Energy Use

    Track monthly energy use and cost by device. Find high-energy users and cut your bills.

  3. Net Metering for Solar

    Monitor solar or wind output in real time. Track self-generated power and feed-in energy accurately.

  4. Set Limits to Prevent Excessive Use

    Set power limits for devices. Get instant alerts to spot unusual use and avoid extra costs.


1 Cut Energy Waste Now 2 Low Bills, Fast Payback 3 Solar Power, Zero Waste 4 Preventive Monitoring


1 Reverse CT Readings 2 Manage Peak Demand 3 Electricity Records 4 Power Factor Tracking 5 Customize Channel Names

Certified, Reliable, and Built for Home Use

  2. ETL Certified for Safety

    ETL certified, UL 61010 compliant, high-quality clamp-on CTs, built for long-term home use.

  5. Energy Monitor Size


  6. Circuit Sensor Size


  • The Refoss Smart Home Energy Monitor is built for the Total System Health enthusiast — someone who values privacy.

  • Does the Refoss EM16P work without Home Assistant?

    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.

  • Why is my electricity bill so high?

    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%.

  • I don’t want my energy data sent to the cloud. Is it safe?

    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.

  • Am I wasting solar energy?

    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.

  • How can I spot energy-hungry or faulty appliances?

    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.

Technical Specifications

Channels 2 main circuits (Max. 200 A) + 16 branch circuits (up to 60 A per branch)
Accuracy 200A CT: ±1% (2–200A), ±2% (1–2A), ±5% (0–1A); 60A CT: ±1% (1–60A), ±2% (0–1A)
Local Storage Minute-level data, up to 7 days
Cloud Storage Daily: up to 5 years; Hourly: up to 2 years; Minute: up to 2 months
Data Export Free data export via Refoss cloud
Open API Supports MQTT, HTTP, JSON-RPC, WebSocket & Webhooks for seamless device integration
Home Assistant Smart home automation, solar management, and EV charging with Home Assistant
Refoss App App supports automation rules, channel merging, CT inversion, peak demand
Solar Solar PV monitoring & net metering support
Measurements Voltage, Current, Active & Reactive Power, Energy, Power Factor
Connectivity 2.4 GHz Wi‑Fi + Bluetooth for setup and communication
System Compatibility Single-phase, 2-wire; Single-split phase, 3-wire; 3-phase, 4-wire Wye systems with earthed neutral (TN or TT, no Delta)
Antenna High-gain external antenna for stronger Wi-Fi reception
Processor High-performance ESP32-D0WDR2-V3 CPU, 100–240V~, 50/60Hz
After-sales Service Lifetime
Safety ETL Certified, UL 61010, FCC, IC, RoHS, CPF
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56926655866

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 412 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Sassbox
Lake Worth, US
★★★★★ 4
Good Short Read
Format: Kindle
I found the story to be pretty engaging, but I felt like there could have been more depth to the story.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2018
D
Danielle Wilson
Lake Worth, US
★★★★★ 4
Beautiful Family Contemporary
Format: Kindle
“But I believe strongly that we all have multiple versions of ourselves. And the true test of love is learning to accept all of those versions, even when it’s messy. Actually, especially when it’s messy.” I LOVE family-centric contemporary stories. They are so easy for me to get invested in and I love seeing the relationships form and evolve. I just love them so much. Here We Are Now was a really good family centric contemporary, that also really highlighted opening yourself up and conquering your fears - whatever they may be. We follow Taliah as she meets her rockstar dad Julian Oliver for the first time, when he asks her to come visit his dying father. Tal learns more about her mom, Julian, and herself than she ever expected and she has to learn to reconcile these new truths with what she’s always believed to be true. Things I Liked I really loved the flashbacks we get throughout the story. They show personality, relationships, and I love that we get to see more of Lena’s Jordanian culture. They really helped develop the characters and provide more backstory and depth. I really liked a lot of the characters! I thought Harlow was a great friend, who tried to help Taliah grow and open up about things, even if she was uncomfortable. Debra, Tal’s grandmother is so kind and insightful and warm. I also liked the moments we get to see Tal and Julian learning more about each other. These pure family moments are the ones that really shined for me and gave life to the story. I also really liked that they bonded over music! Things I Didn’t Like I have kinda mixed feelings about Taliah. I understand that Tal’s been put in this weird position and has a lot of confusing and probably conflicting feelings, but I thought she was being purposefully difficult a few times. But she did apologize for that and for being hard to get to know - and I liked that. I think overall I was just a little indifferent to her, which was unfortunate. I feel like the budding romance between Tal and Julian’s neighbor Toby, was pretty unnecessary, and mostly just took page time away that could have been used to further develop family moments. This such an easy book to get invested in. I loved seeing the family moments and Julian and Tal becoming closer, and while I would have liked more development in the family relationships, I was satisfied with what I got. Here We Are Now is a lovely story of family and discovering where you fit in. I received a copy of the book from Balzer + Bray via Edelweiss in exchange for an honest review. All quotes are taken from an ARC and are subject to change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2017
F
Verified Purchase
Firefly 99
Battle Creek, US
★★★★★ 5
Ahhhh!
Format: Kindle
So I went back and read the first Dreamers Bay book again before reading this one. So very good! Melissa never disappoints! Kyle and Savanna's story is so great. It is funny, spicy, and oh so sweet and getting to revisit Devyn and Elizabeth again just makes me smile! On how I wish Ms. Brayden would revisit the girls from Soho series. Hint, hint! They were the first books I ever read from this author and they hold a special place in my heart! I have probably reread then 3 or 4 times each. It would be so great to see what Hunter, Sam, Brooklyn, Jessica, Hope and Mallory are all up to in the future. As readers we get invested in this wonderful authors characters and getting to catch up with them is like getting an early Christmas present! Buy this one - you won't regret it and if you have never read Melissa Brayden's work before you are totally missing out!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
K
kwc
Los Angeles, US
★★★★★ 4
Small town romance. Love the banter.
Format: Paperback
Savanna Potter is a perky can do person that is beloved in her small hometown. But she has suffered a lot of losses including her parents and the aunt who took her in and raised her. On a weekend in Charleston she has a chance meeting and hook-up with the right person but at the wrong time. They agree to meet up again in a year but Dr. Kyle Remington doesn’t show up. A few months later Kyle arrives in Dreamer’s Bay. She is embracing small town living and wanting Savanna as well. Brayden is delightful, as usual, with her witty banter. This is a fairly light and breezy LesFic romance. There are some side plots. But the easy romance between Savanna and Kyle is the focus. I think the only extra thing I wanted was to know more about Kyle. Everything is from Savanna’s POV and you see Kyle mostly in Savanna’s world. It was almost as if her character was irrelevant to the plot other than for her work crisis. Why did she change careers? Does she have a family that she stays in touch with? But with that said this is the kind of book I pull easily from my shelf to read again on a day when I want a quick pick me up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2025
M
Verified Purchase
Mary K. Priddy
Carnegie, US
★★★★★ 5
You'll laugh, you'll cry, you'll want donuts...classic Brayden
I enjoyed several things about Dream a Little Dream. The small-town setting, checking in with folks from a previous book - Beautiful Dreamer - in this case - how the author focused on the relationships Savanna and Kyle have with their friends/families, which helped me have a better understanding of each character. In my opinion, Brayden is one the best out there writing dialogue between all characters in her books. The small details she adds to each person help you get to know them a bit better. And the story took a few "did not see that comings," which kept me turning the pages long after I should have turned off the lights. But what I enjoyed most was simply Savanna and Kyle. They have rocketed to second place on my "Top Ten Melissa Brayden Character" list. Both go through several personal and professional ups and downs, but it is Savanna who makes me want to reach into the book and give her a big ole "everything's going to be okay, hug." It's classic Brayden, with a twist. I give it a solid 12.3 out of 10. I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2025

recommand products

Crazyflie LED-ring deck
18.24
CubePilot HERE3+ GNSS Module for Pixhawk (M8P) w/ iStand
123.25
UMT Pixhawk Airspeed Sensor Kit
32.93
RF Design RFD 868ux-EU Long Range Telemetry Modem Bundle
166.56
Tattu R-Line 3.0 1800mAh 14.8V 120C 4S1P Lipo Battery Pack with XT60
32.58