Refoss has
Refoss Open API Smart Energy Monitor (EM16P) on sale for $159.99 - $23.99 discount code
WELCOME15 at checkout =
$136.
Shipping is free.
Thanks to Community Member
ducksoup18 for sharing this deal.
Details:
- EM16P MODEL & 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.
- 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.
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34 Comments
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Edit: nevermind, I am too much of a coward to install this.
Wish it did more than 16 (plus the 2 mains) but it'll work well enough I guess...
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Update: I think this is a good deal, been waiting to order emporia vue 3 this black friday but I pulled the trigger on this.. based on my research:
Pros to this over emporia:
- This has 7 days data storage.. if the wifi goes out, the data is not lost while in emporia, you lose data
- No cloud but I dont need cloud.. This has native HA integration while in emporia you connect to cloud to pull data into Home assistant whihc still is ok if you dont care about privacy etc but there is an unnecessary step in middle for people who dont care about cloud
- 136$ compared to ~$200 for emporia and for flashing with ESPHome, you need to buy another part worth $10 for emporia and need to do some soldering which is a hassle..
Pros to Emporia over this:Join The Conversation
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