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Start Your Smart Lifestyle with SEM-Meter
Protect your home’s health in real time!
Committed to bringing the best value as affordable possible, the SEM-Meter provides everything you need to monitor your entire home's energy usage in real time. See how much electricity your home is using anywhere, anytime.
Super Privacy Mode updated ！
16PCS 50A Sensors Monitor Individual Circuits
Dimensions: 1.61'' * 1.28'' * 0.9'' (40.8mm * 32.51mm * 22.86mm)
Window diameter: 0.39" (1mm)
Cable length: 39" (1m)
Connector plug: 2.5mm
Select the important appliance you want to monitor and connect the 50A sensor to monitor it to understand its power usage.
2PC 200A Sensors Monitoring Main Circuit
Dimensions: 2.58'' * 1.75'' * 1.23'' (65.53mm * 44.45mm * 31.24mm)
Window diameter: 0.94" (23.86mm)
Cable length: 39" (1m)
Connector plug: 3.5mm
Connect the 200A sensor to the main circuit to monitor your home's total power consumption. Easily understand your household consumption, save electricity bills, and conserve earth resources.
Functional Diversity
——Track home energy usage in real time 24/7.
——Check the data of each appliance anytime and anywhere.
——Never miss every appliance, air conditioner, furnace, water heater, washer, dryer, range, etc.
——Customized notification settings (online, offline, or circuit power alarm).
——All data can be exported.
Overview of Energy Usage by Circuit
Display the main circuit consumption and the consumption of each circuit at a glance. Accurately grasp the real-time consumption of the main circuit and each electrical appliance, and support real-time and historical data export.
Electricity Consumption Display
Display the electricity consumption in different periods with Now/Min/Hour/Day/Week/Month/Year, and know the energy consumption of each circuit. It is simple and intuitive, and the data can also be exported.
Custom Notifications
Set custom notifications for each circuit, and when it exceeds/falls below the set value, an alarm will be triggered to notify you.
Super Privacy Mode
Super Privacy Mode
running without cloud,without internet !
Super Privacy Mode:
1. input your own MQTT server.
2. email support to delete your account on cloud
3. uninstall app on your phone.
cloud server will not accpet any data or any information from your device,
You can prohibit the device from accessing the external network in the router's firewall.
Patrick Cartwright
2025-07-19 18:07:10
This smart home energy monitor offers incredible value for the price. It's half the cost of many competitors, but it doesn't skimp on features or performance. The app is straightforward and efficiently provides all the essential information about your energy usage. Even better, it seamlessly integrates with Home Assistant after enabling a couple of permissions, which is a huge plus for smart home enthusiasts.
jblues
2025-06-19 16:43:29
Unit is compact and sensor clamps are also small. Had no issue in getting this into my full 200A panel box. Packaging was well done and everything was secure. Installing this into a breaker panel can be intimidating for many, but it is quite easy. Support on the product is also very quick and efficient. I was able to setup in Home Assistant quickly and easily. It is reporting to my own MQTT. Would be amazing if an addon or HACS module was made for it. There are some values for correcting my 220v circuits in the config yaml I am getting assistance on. I will post back once I have assurance I am doing correctly. The support has been quite quick to respond to my initial inquiry. Overall I am VERY HAPPY with my purchase.Unit comes with all pieces necessary to install. Extra wire and wire nuts in case needed for unit power, antenna extension cable, rubber plugs for any unused ports.Only thing I was concerned was if the main clamps were going to be able to reach as I had to put the unit at the very top and my feed comes from the bottom. There was enough length to adequately route neatly and have minimal slack. I forgot to take pics, may update in near future.In doing this I also realized I have circuits over 50 amp and also a subpanel of 90. I will be purchasing a second unit for my subpanel.*UpdateUnit is working flawlessly in homeassistant. Was going to build myself, but this proved to be an excellent value with none of the diy work. I will note that for US Buyers on 110v circuits monitoring a double 220v breaker, a modification to the configuration.yaml circuit will need to be adjusted. The sample config as described in the manual works very well, but is setup for observing only 1 leg. To adjust for 2 legs you will need to multiply the multiplier for voltage, active power, energy in and energy out by 2. ex if it is .1 then .2 if .01 then .02. Example provided by the very quick and very responsive support I have included. Hopefully they will also update their manual.I will be purchasing a 2nd unit for my subpanel in the near future. Thank you for an excellent product.
Chris
2025-06-14 13:56:03
This equipment is easy to install and very accurate. It's great for comparing your solar energy production with your power bill.
Customer
2025-06-07 16:27:17
For the price, this is an excellent product if you are at all interested in figuring out where your electricity is being used. It was very easy to install and both the provided installation document and the online instructions are very clear. The only trouble I had with installation was figuring out which circuits to monitor because I have more than 16. The set up of the App on my phone was also very easy and took only minutes. Then I was able to configure the circuits to give them names and double the watts for double pole breakers. Very easy. However I could not figure out how to download the data, but the support team quickly answered my email and solved that problem.Now, if not for the great price, I would probably rate this a 4 instead of a 5 because of 2 things:1) I'm not convinced the readings are 100% accurate because I have a fairly large balance (difference between mains and sum of circuits). Even though I know I'm not monitoring all my circuits, the ones not being monitored are for rooms that are not in use. So I would expect a very small balance.2) I want to be able to monitor all my circuits, so would like a product that has enough ports to support that. I could not find anything like that, so chose this one.
Clay
2025-06-06 16:13:15
Pretty accurate device. Makes you more energy conscious. I’ve checked the circuits with a clamp on meter and they are pretty close. It was easy to install just takes time. Only thing I wish the leads could be cut to length. Server only went down once for a half a day. I’m hoping to be able to contest my high bill with the power company.
Daddio
2025-01-07 16:14:27
Fantastic product!Functions as advertised and gives me immediate insight into our power usage along with historical metrics via MQTT.Still working through setting up home assistant and enjoying the ride.I likely will buy a second to get all our breakers monitored. If you’re shopping for a monitoring system - This one has been no fuss, compact and easily installed without me shocking myself..
JB7
2024-11-22 10:56:55
I have been wanting to purchase one of these power monitoring tools for a long time, but the cost and my restrictive circuit breaker box held me back. I found this Smart Energy Monitor by Smart Fusion and for $109 for a 16-port system, I had to give it a try. I have the tightest circuit breaker box on the planet so if I can install a smart energy monitor into my panel, most people should have no problems. It took a bit of work, especially the way my main power lines come in, but I found a way to get the 200-amp main line clamps installed. They do offer thin flexible rings, but those are special order and I did not want to wait. Our main panel has over 20-breakers and three sub-panels so I installed the 16-clamp-on sensors and then moved them around to find the circuits using the most power. This Smart Monitor has been very useful. We found a small drink refrigerator was using more power than our full size refrigerator. Also, we were able to change the way we were using our appliances to maximize the energy savings. Everyone should have one of these smart energy monitors. A couple days into the smart power monitor use, I had a issue connecting to the "monitoring" cloud database. I emailed the support team and they replied within a couple hours and was able to resolve the issue. Even though I wasn't connected for a day, no data was lost. Great tool. Great support. At this price, I cannot believe these are not flying off the shelf.
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