--- product_id: 568841687 title: "Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring" price: "€ 227.84" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/568841687-shelly-pro-em-50a-wi-fi-and-lan-energy-meter store_origin: HR region: Croatia --- # 50A dual-channel precision Wi-Fi & LAN connectivity Integrated contactor control Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring **Price:** € 227.84 **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart space with precision and control—because every watt counts! ## Quick Answers - **What is this?** Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - **How much does it cost?** € 227.84 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/568841687-shelly-pro-em-50a-wi-fi-and-lan-energy-meter) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **DIN-Rail Ready:** Compact, industrial-grade design fits perfectly into your electrical panel for professional-grade installation. - • **Smart Load Control:** Automate and optimize energy use by remotely switching devices on/off with potential-free contactor control. - • **Seamless Connectivity:** Wi-Fi, LAN, and Bluetooth gateway ensure flawless integration with Alexa, Google Home, and your smart ecosystem—no hub needed. - • **Future-Proof Automation:** Supports Matter, Modbus TCP, and JSON for versatile, scalable smart home and SMB energy management. - • **Precision Power Tracking:** Dual 50A current transformers deliver ultra-accurate energy monitoring for smarter consumption. ## Overview The Shelly Pro EM 50A is a professional-grade, DIN-rail mounted energy meter featuring dual 50A current transformers, Wi-Fi, LAN, and Bluetooth connectivity. It offers precise power monitoring and integrated contactor control, enabling automated load management without the need for a hub. Compatible with Alexa, Google Home, and advanced protocols like Matter and Modbus TCP, it’s designed to optimize energy consumption in smart homes and small to medium businesses with ease and accuracy. ## Description Product description Connectivity Simultaneous Ethernet and Wi-Fi usage. MQTT, inbound and outbound WebSocket, UDP, mTLS support. Connectivity Simultaneous Ethernet and Wi-Fi usage. MQTT, inbound and outbound WebSocket, UDP, mTLS support. MODBUS Support Allows for easy and fast deployment in existing industrial installations. MODBUS Support Allows for easy and fast deployment in existing industrial installations. Integrated switch 2 A dry contacts switch for contactor control. Integrated switch 2 A dry contacts switch for contactor control. Scripting Capabilities Shelly Pro EM-50 fully supports mjS scripting, allowing you to create further features and functionalities. Scripting Capabilities Shelly Pro EM-50 fully supports mjS scripting, allowing you to create further features and functionalities. Power Measurment Monitors two independent channels on the same phase. Power Measurment Monitors two independent channels on the same phase. Accuracy Class B​ Shelly Pro EM-50 has a measurement accuracy of 1%. Accuracy Class B​ Shelly Pro EM-50 has a measurement accuracy of 1%. Commercial Building Optimization Industrial Power Monitoring Smart Office Management Renewable Energy Monitor power consumption of devices and circuits to identify high energy users. Use Shelly Pro EM-50 for contactor control, turning off appliances at night to save energy.​ Deploy Shelly Pro EM-50 in industrial installations to monitor energy usage and ensure machinery operates within safe parameters, preventing downtime and equipment damage.​ Use Shelly Pro EM-50 to detect high-energy consumption devices in your office. Combine with smart devices to automate lighting, HVAC, and systems, improving efficiency and reducing costs.​ If you have a photovoltaic system at home, Shelly measures grid and renewable energy. Use load control to redirect excess energy to car chargers and appliances, optimizing energy consumption. Shelly Comparison Table Shelly Pro EM 50 Shelly Pro 3EM (120A) Shelly Pro 3EM (400A) Shelly 3EM Review: Excellent tool to keep historical power usage. - Monitoring various branches of my inverted AC outputs to various appliances. Works great and is very accurate. These measurements are logged on charts for historical monitoring. Easy install and no programming needed. Review: Cool power monitor/relay great interfaces - Outstanding piece of kit. WiFi and wired Ethernet, web, JSON, Matter, Modbus and more all built in. Mine worked right out of the box. Got ic controlled via the web and MODBUS TCP. Handy device priced right. ## Features - Shelly Pro EM 50A is a Wi-Fi energy meter with contactor control and LAN connectivity. Designed for DIN rail mounting, this single-phase, dual-channel energy meter comes with an integrated switch featuring potential-free contacts for precise contactor control. The package includes two 50A current transformers for accurate energy measurement. Additionally, it functions as a Bluetooth gateway, enhancing smart home integration and connectivity. - Perfect for SMB owners - If you own a small or medium-sized business, chances are you've struggled with excessive energy consumption at some point. Some machines and equipment are on all the time. With the Shelly PRO EM-50 you can measure and reduce consumption with the highest precision by switching off consumers such as water dispensers, laminators and lights at night. - Home Renewable Energy Ecosystem - If you have a photovoltaic (PV) system at home, the Shelly PRO EM-50 can help you meter grid and imported energy from renewable sources. It also features configurable load control, allowing you to redirect excess energy from renewable sources to electronic devices in your home, optimizing your energy use. - Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 777 Reviews | ## Product Details - **Connector Type:** Clamp - **Contact Material:** Steel - **Contact Type:** Normally Open - **Current Rating:** 50 Amps - **Mounting Type:** DIN Rail Mount ## Images ![Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Image 1](https://m.media-amazon.com/images/I/814scKXU8AL.jpg) ![Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Image 2](https://m.media-amazon.com/images/I/71wKvwc1KbL.jpg) ![Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Image 3](https://m.media-amazon.com/images/I/81rItrayldL.jpg) ![Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Image 4](https://m.media-amazon.com/images/I/715vnx2DHVL.jpg) ![Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Image 5](https://m.media-amazon.com/images/I/815hJkNx2lL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent tool to keep historical power usage. *by B***N on February 26, 2026* Monitoring various branches of my inverted AC outputs to various appliances. Works great and is very accurate. These measurements are logged on charts for historical monitoring. Easy install and no programming needed. ### ⭐⭐⭐⭐⭐ Cool power monitor/relay great interfaces *by D***A on February 6, 2026* Outstanding piece of kit. WiFi and wired Ethernet, web, JSON, Matter, Modbus and more all built in. Mine worked right out of the box. Got ic controlled via the web and MODBUS TCP. Handy device priced right. ### ⭐⭐⭐⭐⭐ Works wonderful in Home Assistant *by X***M on August 2, 2025* Works great with Homa Assistant. Have 4 of these 2 are on wired ethernet and 2 on Wi-Fi. Not 100 percent accurate but very close. Wish there was a offset or calibration process. Note the voltage input is very small and somewhat difficult to connect. Home Assistant immediately identified the devices on the LAN and came online without issues. Entities include power W, Aparent power va, current A, Power Factor, Total active energy kWh, Total active return energy kWh, Frequency Hz, and Voltage. Also can reboot the device from Home Assistant, control the relay dry contact and update the firmware in the HA interface. ## Frequently Bought Together - Shelly Pro EM 50A | Wi-Fi & LAN Energy Meter with Contactor Control | DIN-Rail | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Power Monitoring - Shelly Pro 4PM | Wi-Fi & LAN, 4-Channel Smart Relay with Power Metering | Home Automation | Compatible with Alexa & Google Home | iOS Android App| Remote Appliances Control and Monitoring - Shelly Pro 3EM (120A) | Wi-Fi & LAN, 3-Phase Smart Energy Meter | 2-Way Consumption | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Solar Panels --- ## 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.hr/products/568841687-shelly-pro-em-50a-wi-fi-and-lan-energy-meter](https://www.desertcart.hr/products/568841687-shelly-pro-em-50a-wi-fi-and-lan-energy-meter) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*