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.

Refoss Smart Home Energy Monitor Native Open Api And Web

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 445.96

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Empower your home with smart energy mastery—because every watt counts!

SOLAR POWERED SAVINGS - Automatically shift high-energy loads to peak solar production and slash your bills.
PLUG PLAY INSTALLATION - Clamp-on sensors fit most panels with ETL certification and 2-year warranty for peace of mind.
PRECISION ENERGY INSIGHTS - Track voltage, current, and power with ±1% accuracy for smarter decisions.
SMART ALERTS AUTOMATION - Set custom thresholds and get instant notifications to optimize usage and prevent waste.
PRIVACY FIRST LOCAL CONTROL - Access your data via Web UI and Open API without cloud dependency—your energy, your rules.

The Refoss EM16 Smart Home Energy Monitor delivers ultra-accurate, real-time tracking of your home's electricity usage with ±1% precision. Designed for privacy-conscious users, it offers local control through Web UI, Open API, and MQTT, eliminating cloud reliance. Perfect for solar homes, it intelligently maximizes solar self-consumption by automating high-energy appliances during peak production. ETL certified and easy to install with clamp-on sensors, it supports up to 2 main circuits and 16 branch circuits, providing detailed historical data and smart alerts to help you save 10–20% on electricity bills while maintaining full control and security.

Specifications

ASIN	B0DJNV3GPR
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#271,949 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Home Automation Modules
Color	Orange+White
Customer Reviews	4.4 4.4 out of 5 stars (211)
Date First Available	October 31, 2024
Included Components	Home Energy Monitor, WiFi Antenna Assembly, 200A Current Transformers x 2, 60A Current Transformers x 16, 3.5mm Insulation Plugs x 2, 2.5mm Insulation Plugs x 16, Wire Nuts x 3, Extra Wires x 3, Wire Harness, User Manual
Item Package Quantity	1
Item Weight	4.27 pounds
Item model number	EM16
Manufacturer	Refoss
Part Number	EM16
Product Dimensions	4.5 x 3.48 x 1.1 inches

Reviews

S**E

8.09.2025

E**.

29.09.2025

I**N

20.07.2025

T**N

12.09.2025

T**A

1.08.2025

K**.

19.09.2025

R**N

14.10.2025

W**K

4.10.2025

A**R

28.10.2025

S**Y

1.11.2025

Z**K

25.01.2026

T**M

17.10.2025

G**E

14.03.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 445.96

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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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

Description

Specifications

Reviews

Common Questions