--- product_id: 245134291 title: "Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL" brand: "iammeter" price: "10458796₫" currency: VND in_stock: true reviews_count: 13 category: "Iammeter" url: https://www.desertcart.vn/products/245134291-bi-directional-din-rail-monitor-solar-pv-power-usage-monitor store_origin: VN region: Vietnam --- # 150A max current capacity WiFi + Modbus TCP/RTU connectivity Bi-directional energy flow monitoring Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL **Brand:** iammeter **Price:** 10458796₫ **Availability:** ✅ In Stock ## Summary > 🔋 Own your energy story with precision and power. ## Quick Answers - **What is this?** Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL by iammeter - **How much does it cost?** 10458796₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/245134291-bi-directional-din-rail-monitor-solar-pv-power-usage-monitor) ## Best For - iammeter enthusiasts ## Why This Product - Trusted iammeter brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Real-Time Energy Mastery:** Track solar production vs grid import/export live for ultimate control. - • **Seamless Smart Home Sync:** Open API integrates effortlessly with Home-Assistant, Node-RED & more. - • **Dual-Phase Power Precision:** Supports split-phase and three-phase setups up to 150A for versatile installations. - • **Comprehensive Billing Insights:** Generate hourly, daily, and monthly energy reports to optimize savings. - • **Robust & Certified Reliability:** CE, FCC, UL certified with industrial-grade DIN rail design for lasting performance. ## Overview 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, it provides real-time tracking of energy imported from and exported to the grid, detailed billing reports, and supports split-phase and three-phase electrical systems, making it a robust solution for tech-savvy homeowners aiming to optimize solar energy usage and net metering. ## Description IAMMETER,Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL: desertcart.com: Tools & Home Improvement Review: 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: {'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); } ?> Review: 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. ## Features - Monitor "Exported to/Imported from Grid Energy" vs "Solar Production" in realtime - Track your home energy use in realtime and create the billing information on hourly/daily/monthly basis - Compare your electricty bill and income of your solar PV system and provide you a detailed report - Monitor energy flow in two-way (From Grid and To Grid) by only one bi-directional meter - Open API for perfect integration into your own server or other Home Automation Platform (Home-Assistant,openHAB,Node-RED,ioBroker,PVoutput) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08LV8DDFP | | Best Sellers Rank | #705,075 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #101 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 | ## Images ![Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - Image 1](https://m.media-amazon.com/images/I/71+ICJLG4hL.jpg) ![Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - Image 2](https://m.media-amazon.com/images/I/61bYxCNpqUL.jpg) ![Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - Image 3](https://m.media-amazon.com/images/I/51yDjxyB-lL.jpg) ![Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - Image 4](https://m.media-amazon.com/images/I/41+-CdCFgoL.jpg) ![Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - Image 5](https://m.media-amazon.com/images/I/61va4mc2WLL.jpg) ## Available Options This product comes in different **Model** options. ## Questions & Answers **Q: how often it update the data send ? does have instant power update ?** A: The energy meter will upload data to IAMMETER-cloud every 1 min. If you need more fast uploading,there are many options 1 use the modbus tcp ,you can request data every 1 second. https://www.iammeter.com/newsshow/news-modbus-tcp-energy-meter 2 use the local API ,you can request data every 6 seconds. https://www.iammeter.com/docs/integrate-with-PVOutput 3 develop your own server and do not use IAMMETER-cloud, then you can upload data each 6 seconds(to your own server) https://www.iammeter.com/docs/own-system **Q: Hi, Is it possible for current sensors to be delivered to me to measure 250A or 500A?** A: Hello, sorry, we only have 150A meters on Amazon. I have already replied to you with an email. Please kindly check! Thanks. Best Regards, Steven Lu **Q: I've got a panel with 3 individual phases 127vac/60hz (not delta, not wye), can i use this device to monitor them? can you share a link with a manual?** A: please refer to https://www.iammeter.com/docs/wiring-diagram **Q: can you measure power factor and kwh demand?** A: Hi, this product can measure pf. About the kwh demand, I think it should be calculated by the cloud service ,not the hardware. Our cloud have not provided such function now(calculate kwh demand), maybe we will consider upgrade our system to provide such feature if more customer have this requirements. ## Customer Reviews ### ⭐⭐⭐⭐⭐ GREAT! *by C***R on September 27, 2022* 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: {'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); } ?> ### ⭐⭐⭐⭐⭐ Really excellent energy monitor for the tech-savy *by S***R on December 26, 2022* 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. ### ⭐⭐⭐⭐⭐ great for IoT and power control *by A***Z on November 16, 2022* 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. ## Frequently Bought Together - IAMMETER,Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,WEM3080T,CE,FCC,UL - IAMMETER Bi-directional, Din Rail,Split Core CT,Solar PV System monitoring,Power Usage Monitor, Modbus TCP/RTU, Home-Assistant,NodeRed,Single Phase Energy Meter,WiFi,150A,WEM3080 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/245134291-bi-directional-din-rail-monitor-solar-pv-power-usage-monitor](https://www.desertcart.vn/products/245134291-bi-directional-din-rail-monitor-solar-pv-power-usage-monitor) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-23*