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phoinix | Staff 36.9K Views
Nov 27, 2025 5:48 PM

Prime Members: Refoss Smart Home Wi-Fi/Bluetooth Energy Monitor System

$152

$240

36% off
+ Free Shippingat Amazon
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Meross | Refoss Smart Home via Amazon has for Prime Members: Refoss Smart Home Wi-Fi/Bluetooth Energy Monitor System w/ 16x 60A Circuit Sensors (EM16) for $151.99. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

About this Item:
  • Supports 2 main circuit sensors (up to 200A each) and 16 branch circuit sensors (up to 60A each) with easy-to-install clamp-on design. Compatible with single-phase 2-wire systems, single-split phase 3-wire systems, and 3-phase 4-wire Wye systems with earthed (TN or TT) neutral (no Delta). Easily installs in most home circuit panels.
  • Keep track of your home's electricity usage anytime, anywhere with the Refoss app. Easily monitor power, current, voltage, and power factor for major appliances like air conditioners, furnaces, and water heaters. Track real-time electricity usage data to see what's running and identify what's consuming power.
  • Identify energy-hungry appliances, and set usage goal for each circuit. You'll receive alerts for unusual energy spikes, and take proactive steps to lower your electricity bills and save more energy.
  • The Refoss energy monitor offers 98% accuracy and can store up to 36 months of data. Easily access detailed electricity usage and cost graphs by minute, hour, day, month, or year, giving you deep insights into your energy consumption and empowering you to make smarter energy decisions.
  • Specs:
    • Power Supply: 100-240V~, 50/60Hz
    • Supported System:
      • Single-phase, 2-wire systems
      • Split-phase, 3-wire systems
      • Three-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta)
    • Voltage-current Correspondence:
      • Red -> A1~ A6, Power
      • Green -> B1~ B6
      • Black -> C1~ C6
    • Main Current Transformers:
      • Max Primary Current: 200A
      • Max Voltage: 250V (Primary) / 333mV (Secondary)
      • Burden Resistor: 7.2ohm, 1%, 62.5mW
      • Cable Length: 1m
      • Inside Diameter: 24mm
    • Branch Current Transformers:
      • Max Primary Current: 60A
      • Max Voltage: 250V (Primary) / 333mV (Secondary)
      • Burden Resistor: 18.2ohm, 1%, 62.5mW
      • Cable Length: 1m
      • Inside Diameter: 10mm
  • Includes: Home Energy Monitor, Wi-Fi Antenna Assembly, 2x 200A Current Transformers, 16x 60A Current Transformers, 2x 3.5mm Insulation Plugs, 16x 2.5mm Insulation Plugs, 3x Wire Nuts, 3x Extra Wires, Wire Harness, User Manual

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • This is priced $5.50 less than this previous +45 Frontpage Deal in July.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Meross | Refoss Smart Home via Amazon has for Prime Members: Refoss Smart Home Wi-Fi/Bluetooth Energy Monitor System w/ 16x 60A Circuit Sensors (EM16) for $151.99. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

About this Item:
  • Supports 2 main circuit sensors (up to 200A each) and 16 branch circuit sensors (up to 60A each) with easy-to-install clamp-on design. Compatible with single-phase 2-wire systems, single-split phase 3-wire systems, and 3-phase 4-wire Wye systems with earthed (TN or TT) neutral (no Delta). Easily installs in most home circuit panels.
  • Keep track of your home's electricity usage anytime, anywhere with the Refoss app. Easily monitor power, current, voltage, and power factor for major appliances like air conditioners, furnaces, and water heaters. Track real-time electricity usage data to see what's running and identify what's consuming power.
  • Identify energy-hungry appliances, and set usage goal for each circuit. You'll receive alerts for unusual energy spikes, and take proactive steps to lower your electricity bills and save more energy.
  • The Refoss energy monitor offers 98% accuracy and can store up to 36 months of data. Easily access detailed electricity usage and cost graphs by minute, hour, day, month, or year, giving you deep insights into your energy consumption and empowering you to make smarter energy decisions.
  • Specs:
    • Power Supply: 100-240V~, 50/60Hz
    • Supported System:
      • Single-phase, 2-wire systems
      • Split-phase, 3-wire systems
      • Three-phase, 4-wire Wye systems with earthed (TN or TT) neutral (no-Delta)
    • Voltage-current Correspondence:
      • Red -> A1~ A6, Power
      • Green -> B1~ B6
      • Black -> C1~ C6
    • Main Current Transformers:
      • Max Primary Current: 200A
      • Max Voltage: 250V (Primary) / 333mV (Secondary)
      • Burden Resistor: 7.2ohm, 1%, 62.5mW
      • Cable Length: 1m
      • Inside Diameter: 24mm
    • Branch Current Transformers:
      • Max Primary Current: 60A
      • Max Voltage: 250V (Primary) / 333mV (Secondary)
      • Burden Resistor: 18.2ohm, 1%, 62.5mW
      • Cable Length: 1m
      • Inside Diameter: 10mm
  • Includes: Home Energy Monitor, Wi-Fi Antenna Assembly, 2x 200A Current Transformers, 16x 60A Current Transformers, 2x 3.5mm Insulation Plugs, 16x 2.5mm Insulation Plugs, 3x Wire Nuts, 3x Extra Wires, Wire Harness, User Manual

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • This is priced $5.50 less than this previous +45 Frontpage Deal in July.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:

Original Post

Written by phoinix | Staff

Community Voting

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Top Comments

siapi
104Comments
65Reputation
Got two sets from Amazon resale for about $110. Both looked like brand new. I suggest to look for 30% of Amazon resale during the holiday.
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18 Comments

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Nov 27, 2025 6:18 PM
114 Comments
Joined Aug 2017
PhoenixhawkNov 27, 2025 6:18 PM
114 Comments
I'm in, anyone pay for an install recently?
4
1
Pro
Nov 27, 2025 7:27 PM
4.8K Comments
Joined Apr 2021
BabyBubba
Pro
Nov 27, 2025 7:27 PM
4.8K Comments
I like it. But having whittled down my energy consumption through insulation, strict usage management, heat pump installation, etc. I don't see how this could save me much more. A cool gadget to be sure though. My aspirations are to supplement some higher draw loads (water heating, HVAC) with solar. Battery free and redundant in that the grid takes over when solar won't carry the load on cloudy days or at night. Battery-based storage is a long way from being cost effective for the average homeowner, but energy storage in the form of hot water or a warm/cool living space is attractive with solar.
1
1
Nov 27, 2025 7:29 PM
119 Comments
Joined Nov 2024
foxblurNov 27, 2025 7:29 PM
119 Comments
Quote from Phoenixhawk View quoted comment :
I'm in, anyone pay for an install recently?
Wear gloves. Don't touch shiny metal parts.

I would have bought this years ago but I have a sub panel so I would need 2 and just lost interest due to the price.
Nov 27, 2025 7:55 PM
254 Comments
Joined Mar 2021
SkillfulLinen237Nov 27, 2025 7:55 PM
254 Comments
I like the idea of tracking use and comparing it to what the energy company are saying has been used but beyond that, I'm more interested in knowing what in my house is using what energy and trying to curtail that, which (outside of HVAC and other dedicated circuits) requires individual plugs/this doesn't help. Please correct me if I'm missing something.
Nov 27, 2025 8:21 PM
945 Comments
Joined Jul 2011
sky0102Nov 27, 2025 8:21 PM
945 Comments
Quote from SkillfulLinen237 View quoted comment :
I like the idea of tracking use and comparing it to what the energy company are saying has been used but beyond that, I'm more interested in knowing what in my house is using what energy and trying to curtail that, which (outside of HVAC and other dedicated circuits) requires individual plugs/this doesn't help. Please correct me if I'm missing something.
this looks like it can hook up each sensor to individual circuit breakers
Nov 27, 2025 8:56 PM
649 Comments
Joined Aug 2011
SerialSlickdealerNov 27, 2025 8:56 PM
649 Comments
Quote from SkillfulLinen237 View quoted comment :
I like the idea of tracking use and comparing it to what the energy company are saying has been used but beyond that, I'm more interested in knowing what in my house is using what energy and trying to curtail that, which (outside of HVAC and other dedicated circuits) requires individual plugs/this doesn't help. Please correct me if I'm missing something.
You can use it for automation such as load controlling for solar and battery installations using Home Assistant.
2
1
Nov 27, 2025 9:27 PM
104 Comments
Joined Sep 2011
siapiNov 27, 2025 9:27 PM
104 Comments

Our community has rated this post as helpful. If you agree, why not thank

Got two sets from Amazon resale for about $110. Both looked like brand new. I suggest to look for 30% of Amazon resale during the holiday.
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Nov 27, 2025 10:05 PM
965 Comments
Joined Nov 2023
IdahoRoamingGnomeNov 27, 2025 10:05 PM
965 Comments
This looks exactly like an orange version of the Emporia Vue 3, but with a slightly better app.
Nov 28, 2025 2:03 AM
406 Comments
Joined Nov 2009
WideLoadHereNov 28, 2025 2:03 AM
406 Comments
Quote from siapi View quoted comment :
Got two sets from Amazon resale for about $110. Both looked like brand new. I suggest to look for 30% of Amazon resale during the holiday.
I ordered mine for $110 before tax as well, mine hasn't arrived yet, but I hope it looks new like yours.
Nov 28, 2025 3:01 AM
1.1K Comments
Joined Nov 2022
CleverCreature256Nov 28, 2025 3:01 AM
1.1K Comments
Quote from SerialSlickdealer View quoted comment :
You can use it for automation such as load controlling for solar and battery installations using Home Assistant.
Can it run 100% on only comm with Home Assist without having to install SUS software and unregulated internet comms?
1
Nov 28, 2025 4:46 AM
103 Comments
Joined Aug 2009
Poken1151Nov 28, 2025 4:46 AM
103 Comments
Hmm, I have the Emporia Vue (after switching from Sense, which I hear is now being integrated in some Smart Meters...). But Emporia is flailing with the additional hardware. Anyone have or know of a full review of this system? Is it possibly fully local? Or better ecosystem?
Nov 28, 2025 5:49 AM
14 Comments
Joined Mar 2020
MicroManIdahoNov 28, 2025 5:49 AM
14 Comments
Cheaper than this summers deal by a couple bucks.

Love this thing for use with homeassistant!
Nov 28, 2025 6:39 AM
682 Comments
Joined Jun 2008
pchangoverNov 28, 2025 6:39 AM
682 Comments
Quote from Poken1151 View quoted comment :
Hmm, I have the Emporia Vue (after switching from Sense, which I hear is now being integrated in some Smart Meters...). But Emporia is flailing with the additional hardware. Anyone have or know of a full review of this system? Is it possibly fully local? Or better ecosystem?
Same here! I'm wondering the same.
Nov 28, 2025 8:18 AM
200 Comments
Joined Dec 2006
jonathankaz124Nov 28, 2025 8:18 AM
200 Comments
Quote from Poken1151 View quoted comment :
Hmm, I have the Emporia Vue (after switching from Sense, which I hear is now being integrated in some Smart Meters...). But Emporia is flailing with the additional hardware. Anyone have or know of a full review of this system? Is it possibly fully local? Or better ecosystem?
What additional hardware?

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Nov 28, 2025 8:39 AM
103 Comments
Joined Aug 2009
Poken1151Nov 28, 2025 8:39 AM
103 Comments
Quote from jonathankaz124 View quoted comment :
What additional hardware?
Bought a 4-pack of outlets a few months ago yo further subdivide the energy monitoring. Only two worked. Bought another four pack a year later (so like a couple weeks ago), and none of them "work". Tried reaching out to cistomer supports, they also flailed about. So on third attempt just asked for a refund.
1

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