









🔋 Own your energy story with precision and style!
The WEM3080T is a bi-directional, three-phase energy meter designed for solar PV and home energy monitoring. It supports up to 150A current, offers WiFi and Modbus TCP/RTU connectivity, and integrates seamlessly with popular home automation platforms via an open API. Certified by CE, FCC, and UL, this DIN rail-mounted meter provides real-time tracking of energy imported from and exported to the grid, detailed billing reports, and robust support for split-phase and three-phase electrical systems.



| ASIN | B08LV8DDFP |
| Best Sellers Rank | #490,238 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #75 in Home Automation Modules |
| Date First Available | October 26, 2020 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.59 pounds |
| Item model number | WEM3080T |
| Manufacturer | Beijing Lewei IOT Technologies Co. Ltd. |
| Product Dimensions | 3.55 x 2.8 x 2.26 inches |
C**R
GREAT!
This meter works very well and it does not require the internet. I was able to integrate it with my 100% custom system in just one evening. I will post code later along with updates on the device itself. It looks very well built. I hope it does not break! The only thing I don't like so far is that I don't seem to be able to change the sampling/reporting rate. I wish I could get data faster than once per minute. I have sent support an email and hope to get a response soon. Fingers crossed. Update: It turns out I didnt have to wait much at all for a response from the support team. They quickly returned my email within a few hours with a solution. With a firmware update I was able to set the update interval! Hands down this is a great device that gives you full control of your data! UPDATE (1/8/23): O ended up buying a second one to monitor more things. The first one is still working strong! For you reference the code I used to log data on my own server is below: <?php $input=file_get_contents('php://input'); $data=json_decode($input); $datas=$data->{'Datas'}; $phA=$datas[0]; $phB=$datas[1]; $phC=$datas[2]; $vPhA=$phA[0]; $iPhA=$phA[1]; $pPhA=$phA[2]; $pfPhA=$phA[6]; $vPhB=$phB[0]; $iPhB=$phB[1]; $pPhB=$phB[2]; $pfPhB=$phB[6]; $vPhC=$phC[0]; $iPhC=$phC[1]; $pPhC=$phC[2]; $pfPhC=$phC[6]; $sql="insert into meter values(now(), $vPhA, $iPhA, $pPhA, $pfPhA, $vPhB, $iPhB, $pPhB, $pfPhB, $vPhC, $iPhC, $pPhC, $pfPhC)"; $conn=new mysqli("localhost", "user", "password", "meter"); if($conn->connect_error) { die("Connection failed: ". $conn->connect_error); } if($conn->query($sql) === FALSE) { die("Query error: " . $conn->error); } ?>
S**R
Really excellent energy monitor for the tech-savy
I bought this product to monitor electric use in my house. I wanted to monitor both phases of my 240VAC main box. I don't use the third phase at all of this device. Set-up was a bit challenging but once I got it up and operating it has been great. I have subsequently purchased two, single-phase models to monitor additional 240V heat pumps in my house. These were easier to setup (probably due to my having gone through the setup process already). I have contacted tech support 3-4 times now and they have been amazingly responsive and helpful. This is the biggest plus -- I have some prior experience with another brand of energy monitor and did not enjoy such good tech support. I access my data both using the phone app and also with my pc on the web. Soon I hope to connect to them using Home Assistant.
A**Z
great for IoT and power control
it's all Chinese stuff and data is pushed to Chinese portals, but you can get really nice diagrams and cost reports. Its worth to install if you have solar power or if you just want to know what devices consume power in your house. Biggest advantage of this device is that allows you to integrate with custom applications. It expose information via internal HTTP API allowing to pull data in JSON format. No need to integrate with China cloud if you don't want to leaving value in customized IoT solutions e.g. putting stuff in zabbix. I'm using zabbix to get statistics. One of the drawbacks is that current may leak cross phases, but probably due to fact that is use coil loops on each wire that may interfere with each other, but you will not overcome this easly. I get power <0W like I would have solar panels, but current leak is very low, i just ignore that.
R**O
Muy buena
Excelente producto
E**D
Awesome device. Only easy option that gives you full control of the data.
Want to have power data integrated within you own app? This one will let you, not a walled garden. Can be setup to post its JSON payload directly to a REST endpoint...or you can poll it at /monitorjson. (And the latest firmware handles remote SSL fine, just make sure you're on the newer V1.75.46 version.) Other options either involve a lot of DIY electronics, or hacking your way into some service that doesn't want to share its data. Also appears quite accurate. REST POSTs arrive about every 6 seconds. Note if you want the WiFi antenna port routed inside your DIN enclosure (coming out the top) like the WEM3080, these just snap apart, and its very easy to drill a new hole and move the connector to the top vs front. Together the 4 channels of a WEM3080 + WEM3080T work great to monitor main power plus a 240v split circuit. Together they fit well in the HT-8 DIN boxes, or for just this alone the HT-5.
J**H
Me agrado que tenga una web dónde se puede consultar en todo momento varios parámetros. Los desarrolladores actualizan el firmware de manera constante dotandole de mayores características. Es fácil de instalar. Lo recomiendo.
S**R
Own 6, adding more...
I own 6 of these. I've constructed my own monitoring system with InnoDB, NodeRed, MQTT, etc. I'll add more to my farm. If you know what you're doing, this thing is great!
J**A
Muy útil para la medición en celdas solares
A**O
He adquirido 6 equipos porque lo he probado comparativamente en la medición de energía con los medidores de CFE, para energía consumida y energía enviada a la red de CFE con páneles solares. No tiene la misma precisión de los medidores de CFE, pero la suficiente para aproximarse mucho y permitir el comportamiento de la energía que consumimos, para poder tomar acciones de ahorro. La información que proporcionan los medidores es muy fácil de interpretar y utilizar, debido a que la presenta en ambiente gráfico y en tablas, con posibilidad de exportación a Excel.
A**R
Bought two of the 3080T for a three phase solar system (no batteries). The user guides are easy to follow and setting up the web site was pretty straightforward. Mounting the DIN rail units in a suitable box (doesn't need a 100A switch but I had one spare!) is easy but would have been useful to see a picture with the actual measurements of the monitors on to ensure the box was the right size. There is a spec but it isn't clear if it's the width or height on the specs. Everything is clearly marked on the monitors though for wiring. The split core transformers are really easy to fit with decent length leads as standard and also clearly marked for direction. Everyone worked first time once the wifi is set up and really pleased with the web reporting available. Overall a great product and good value for three phase units.
G**P
Installazione facile seguendo i video di configurazione wifi. Inserimento dati del power meter semplice collegandosi al sito. Funzionamento immediato per i primi parametri e cosa molto importante: sistema Bi-direzionale del controllo della potenza. Per la gestione delle batterie e controllo di altri carichi ne acquisterò un altro a breve. Consiglio rapporto qualità prezzo.
G**E
I bought the 3 phase ammeter in 2022 and connected it up as a solar / power monitor . It has worked well all this time. It shows power in and out, solar output, and I have connected the 3rd ct to show my air conditioning loads. ( just ran 3 actives through the coil.) It has proven invaluable as an energy saving device . Being able to look at general power usage and solar output and air conditioning loads, I have been able to save lots. Also you can see the results of turning on a/c on early and running on low all day with solar panels working, The power runs under the solar output and no power is drawn from the grid. This is with my system, but I can see it being helpful to any installation. Would recommend.
P**5
Lo utilizando para monitorear los parámetros electricos de mi casa para tener un mejor control de la calidad de energía y como se comporta el consumo eléctrico durante el día
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