RFXCom 433EMC Transceiver
Fast Tracked EU Delivery
Fast Tracked EU Delivery
Tracked delivery in 3–7 working days, with courier and express options at checkout.
VAT and any import duty are paid at checkout, so there's nothing to pay on delivery.
In-stock items ordered before 2:30pm (UK time) ship the same working day.
Smart Home Help When You Need It
Smart Home Help When You Need It
Transform your home into a smart one with us, and gain more than just a product.
You'll get set-up help and answers from our smart home team by email and live chat, plus a wealth of guides to help with any technical questions.
Compatibility Guarantee
Compatibility Guarantee
If RFXCom 433EMC Transceiver doesn't work with your existing system, you can return it within 30 days for a refund under our returns policy.
Request the return from your account and we'll send you an RMA number and instructions.
Summary
The RFX-433EMC is a 433.92 MHz RF transceiver with USB, WiFi, and MQTT support, enabling reliable two-way communication with compatible 433 MHz devices and seamless integration with Home Assistant and other automation platforms.
Connect 433.92 MHz Devices with Ease
The RFX-433EMC is a 433.92 MHz RF transceiver that transmits and receives wireless signals via USB, WiFi, and MQTT. It seamlessly integrates compatible 433.92 MHz blinds, shutters, switches, sensors, weather stations, and other wireless devices with Home Assistant, home automation platforms, or custom software.

Easy WiFi Configuration
Set up the RFX-433EMC in minutes using the built-in RFXCOM WiFi Manager. Configure your WiFi credentials through the temporary access point, or assign a static IP for advanced network setups. With support for both DHCP and manual network settings, integration into your local network is quick and straightforward.

Wide 433 MHz Compatibility
Control compatible Somfy devices from your PC or home automation controller with the 433.92 MHz RF transceiver. Supporting 30+ wireless protocols, it integrates seamlessly with a wide range of home automation platforms for reliable two-way communication and smart home control.
Modern 433 MHz Smart Home Bridge
The RFX-433EMC is RFXCOM's latest 433.92 MHz RF transceiver, designed to connect and control a wide range of compatible wireless devices. Acting as a bridge between 433 MHz products and Home Assistant or other automation platforms, it enables reliable two-way communication with switches, lighting, sensors, weather stations, blinds, and more.
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Device Type
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Load FeaturesMulti-Protocol Universal Transceiver, USB-C Interface, LoRa Support (RFM95 option), RAW Data Support, RFX-EMC Extension Board, MQTT Automatic Discovery, MCZ Pellet Stove Control
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Sensor FeaturesTemperature, Humidity
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FeaturesHome Assistant Compatible, USB Powered, MQTT Auto Discovery, Firmware Updates, Bidirectional Communication
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Technology433MHz, Wi-Fi, MQTT
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Controller TypeRF Transceiver
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DC Voltage5V
Helpful guides for this product
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Complete Home Automation Guide: Systems, Devices & Setup for BeginnersWhat a smart home is, the first decisions to make, a sensible first kit and mistakes to avoid.
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Best Smart Home Hubs: How to Choose the Right ControllerCompare the five controllers we recommend and pick the right hub before you buy devices.
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Z-Wave vs Z-Wave Plus: Complete Smart Home Protocol GuideHow Z-Wave works, what Plus, Plus V2, 800 Series and Long Range mean, and what you need.
Manuals
Payment & Security
Payment methods
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Frequently Asked Questions
What if it's incompatible with my existing smart home system?
What if it's incompatible with my existing smart home system?
If you try RFXCom 433EMC Transceiver and find it isn't compatible with your system, you can return it within 30 days for a refund.
How can I get technical support for it?
How can I get technical support for it?
Set-up help and answers from our smart home team by email and live chat. Just get in touch with any technical question you have.
Do you offer installation services?
Do you offer installation services?
While we don't offer direct installation services, we provide online support through guides, videos, and help from our smart home team by email and live chat. If you need an installer, we can often help connect you. With advancements in smart home tech, most of our products can be self-installed with guidance.
What if I struggle with installing or using after purchase?
What if I struggle with installing or using after purchase?
Just get in touch. Our smart home team can help you work through set-up and troubleshooting by email and live chat, and our guides and videos cover set-up for many devices. Most problems can be sorted quickly with the right steps.
How quickly will I receive my order?
How quickly will I receive my order?
Orders placed before 2:30pm on a working day are dispatched the same day. In the UK, Standard delivery takes 2 to 4 working days and Express is a next-day service. If your order includes a Vesternet device, choose Standard at checkout and we upgrade the whole order to next-day at no extra cost. For orders outside the UK, delivery options and times are shown at checkout.
Why should I choose to buy from Vesternet over other online stores?
Why should I choose to buy from Vesternet over other online stores?
When you buy from Vesternet, you're not just purchasing a product. You get set-up help and answers from our smart home team by email and live chat, plus guides for the products we sell. While there might be cheaper options online, home automation can be complex, and good advice can prevent costly mistakes.
Try Vesternet Devices
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