Broadlink RM4 Pro Hub Sensor Review: Who It Fits and Who Should Skip It
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This broadlink rm4 pro hts2 ir rf review covers a universal remote hub that combines infrared and radio frequency control with environmental monitoring. The device includes an external HTS2 sensor cable to track room temperature and humidity. It connects via 2.4 GHz Wi-Fi and supports Alexa, Google Home, and IFTTT. The hub handles over 50,000 IR devices and 433 MHz RF signals. It does not work with Bluetooth or 5 GHz networks. This setup centralizes control for many legacy smart home gadgets.
What stands out
- Includes HTS2 external temperature and humidity sensor cable
- Controls 50,000+ IR 38KHz devices like TVs and ACs
- Supports RF 433MHz fixed code devices such as curtain motors
- Compatible with Alexa, Google Home, and IFTTT
- Uses 2.4 GHz Wi-Fi for network connection
Who it fits
Good fit for
You should buy this if you have a mix of infrared and 433 MHz RF devices, such as old air conditioners or motorized curtains. The included HTS2 sensor is useful if you want to monitor room conditions alongside your climate control. It fits users who rely on Alexa or Google Home for voice commands. The hub is also good for those who need to program custom buttons since the cloud library may not cover every niche device.
Who should skip it
Skip this product if your home uses 5 GHz Wi-Fi only, as the hub requires 2.4 GHz. It will not work with Bluetooth devices, so do not expect to control phones or speakers directly. Avoid it if you have RF devices that use rolling codes, as the hub only supports fixed codes. You should also skip this if you need mesh router support, since the device does not connect to mesh networks. Users wanting a simple, single-purpose remote may find the setup too complex.
Verdict: The Broadlink RM4 Pro HTS2 is a practical hub for managing mixed IR and RF devices with added environmental sensing. It suits users with legacy gadgets who need voice control and room monitoring.
Key specs for Broadlink RM4 Pro
Connectivity: IR 38KHz
This frequency handles most traditional infrared remotes for TVs, air conditioners, and fans. You need line-of-sight to the device, so obstacles block the signal. It works for standard home electronics but not for newer Bluetooth-only gadgets. Check your current remote’s frequency if you are unsure. This spec ensures broad compatibility with older smart home gear that relies on light pulses for control.
Connectivity: RF 433MHz
This radio frequency controls devices like curtain motors, projectors, and some fans without line-of-sight. It only supports fixed code signals, meaning it cannot learn or pair with rolling code remotes used by garage doors. Verify your device uses fixed code before buying. This feature adds versatility for whole-home automation, allowing you to control non-IR devices from a single hub.
Network Interface: 2.4 GHz Wi-Fi
The hub connects only to 2.4 GHz networks, not 5 GHz. This is standard for smart home devices but limits placement if your router separates bands. Ensure your password has no special characters and is under 32 characters. This connection type provides reliable local control but requires a stable router signal. It does not support mesh router configurations, so check your home network setup.
Smart Home Compatibility: Alexa, Google Home, IFTTT
You can control devices using voice commands through Amazon Alexa or Google Home. IFTTT support allows you to create custom automation routines, like turning on lights when humidity rises. This integration lets you group devices into rooms or scenes. You must enable the specific skills or services in those apps. This compatibility makes the hub a central point for voice-controlled smart home management.
Design and Build Quality
According to the listing, the Broadlink RM4 Pro measures 4.33 inches in length, 3.54 inches in width, and 1.97 inches in height. The finish is black. These dimensions suggest a compact form factor suitable for shelf placement or wall mounting near existing electronics. The small footprint allows it to sit unobtrusively behind televisions or entertainment centers without dominating the visual space.
The device includes an external HTS2 sensor cable for temperature and humidity monitoring. This cable connects via USB to the hub, allowing environmental data to be displayed in the app. You should position the hub where the sensor can accurately read room conditions, away from direct sunlight or heat sources. The IR emitter requires line-of-sight to control devices, so placement near the target electronics is necessary.
The unit supports 2.4 GHz Wi-Fi and does not support 5 GHz networks or mesh routers. This limits where you can place the device within your home network. You must ensure the hub is within range of a 2.4 GHz signal. The physical design prioritizes connectivity and sensor integration over aesthetic flair. The black casing blends with most modern home theater setups. The layout is simple, focusing on the necessary ports for sensor attachment and power.
Setup and everyday use guide
You set up the Broadlink RM4 Pro by connecting it to a 2.4 GHz Wi-Fi network. The listing notes that it does not support 5 GHz Wi-Fi or mesh routers. You must use AP distribution mode, indicated by an indirect flashing blue light. First, connect your mobile phone to the Broadlink network. Then, add the device in the app and follow the on-screen prompts. Ensure your Wi-Fi password has no special characters and stays under 32 characters. If you have multiple networks, turn off others during setup. The device uses FastCon technology for zero configuration. Once the first device is added, new FastCon devices are automatically discovered. In daily use, you control IR 38KHz and RF 433MHz fixed code devices. This includes TVs, air conditioners, fans, and curtain motors. You need line-of-sight for IR signals. The RF function does not support rolling codes. You can also monitor room conditions using the included HTS2 USB cable. The app displays temperature and humidity from the sensor. For voice control, you enable the BroadLink skill in Alexa or Google Home. IFTTT integration is also available. You can program custom buttons if cloud data is missing. The device updates its library via the cloud to support newer electronics. This setup process requires patience with network settings but offers broad compatibility for standard home appliances.
Before You Buy RM4 Pro
You should verify your RF devices use fixed codes, not rolling codes, as this hub cannot learn or control rolling code remotes. Check that your Wi-Fi router supports 2.4 GHz networks, since 5 GHz is unsupported. You may need to disable other Wi-Fi bands during setup to ensure successful connection via AP distribution mode. Consider whether you need voice control through Alexa or Google Home, as these integrations require linking your account in their respective apps. This device complements smart thermostats by adding universal IR and RF control for legacy electronics like TVs and fans. It does not replace a thermostat but extends control to non-smart appliances. Keep the included HTS2 sensor cable connected for accurate room temperature and humidity readings. Ensure no obstacles block infrared signals for reliable operation. This hub fits best in homes with mixed smart and legacy devices.
Check before you buy
- Confirm RF devices use fixed codes, not rolling codes.
- Ensure your router supports 2.4 GHz Wi-Fi networks.
- Check if you need Alexa or Google Home integration.
- Verify line-of-sight for infrared device control.
The product at a glance
Broadlink RM4 Pro Hub with Sensor Cable
Best for: Mixed IR/RF control with environmental monitoring
- Connectivity
- IR 38KHz, RF 433MHz, 2.4 GHz Wi-Fi
- Smart Home Compatibility
- Alexa, Google Home, IFTTT
- Network Interface
- 2.4 GHz Wi-Fi
- Dimensions
- 4.33 × 3.54 × 1.97 inches
View on Amazon: Broadlink RM4 Pro Hub with Sensor Cable Affiliate link
This wireless hub controls over 50,000 IR devices and 433 MHz RF gear. It includes an external HTS2 sensor for real-time room temperature and humidity data in the app. You get voice control via Alexa and Google Home, plus IFTTT support. It connects via 2.4 GHz Wi-Fi. It suits users who want to automate mixed legacy devices with environmental monitoring.
Pros
- Supports IR 38KHz and RF 433MHz fixed code devices
- Includes external HTS2 temperature and humidity sensor
- Compatible with Alexa, Google Home, and IFTTT
- Cloud library updates for new device compatibility
Cons
- Only supports 2.4 GHz Wi-Fi networks
- Does not support 5 GHz Wi-Fi or mesh routers
- RF control is limited to fixed code, not rolling code
Good fit if
- You need to control both IR and RF devices
- You want automated climate adjustments based on sensor data
- You use Alexa or Google Home for voice commands
Skip if
- Your home network only uses 5 GHz Wi-Fi
- You have RF devices that use rolling code security
- You require Bluetooth connectivity for local control
Verdict: Broadlink RM4 Pro+ HTS2 Universal Remote is a practical hub for users with mixed IR and RF devices who need environmental data. It fits those who want voice control and automated routines based on room temperature and humidity.
Specifications side by side
| Spec | Broadlink RM4 Pro Hub with Sensor Cable |
|---|---|
| Connectivity | IR 38KHz, RF 433MHz, 2.4 GHz Wi-Fi |
| Smart Home Compatibility | Alexa, Google Home, IFTTT |
| Network Interface | 2.4 GHz Wi-Fi |
| Dimensions | 4.33 × 3.54 × 1.97 inches |
| Color | Black |
| Model | RM4 PRO+HTS2 |
Frequently asked questions
Does the Broadlink RM4 Pro work with Alexa or Google Home?
Yes, the device supports voice control through major smart home platforms. This allows you to issue commands using your voice to operate connected IR and RF devices. It fits users who want to integrate this hub into an existing ecosystem for hands-free operation of their electronics.
Can I control radio frequency devices like garage doors with this hub?
It supports RF control, but only for devices using fixed codes. You cannot use it for rolling code remotes, such as many modern garage door openers. Check your specific RF devices to ensure they use fixed codes before relying on this hub for those functions.
What is the purpose of the included HTS2 sensor cable?
The external HTS2 sensor cable monitors room temperature and humidity. This data allows the hub to trigger automated routines based on environmental conditions. You can set up actions that respond to specific temperature or humidity levels, adding context to your smart home automations.
Does this hub support 5 GHz Wi-Fi networks?
No, the Broadlink RM4 Pro only connects to 2.4 GHz Wi-Fi networks. It does not support 5 GHz connections. You must ensure your router broadcasts a 2.4 GHz signal and that you use AP distribution mode during setup to connect the device successfully.
How does the infrared control handle obstacles?
Infrared control requires line-of-sight between the hub and your device. Obstacles such as furniture or walls can block the signal. This means you should place the unit where it has a clear view of the electronics you intend to control, such as TVs or air conditioners.
Is the Broadlink RM4 Pro suitable for Bluetooth-only devices?
No, this hub is designed for IR and RF devices, not Bluetooth gadgets. It cannot directly control newer Bluetooth-only products. You need to verify that your electronics use infrared or radio frequency signals for this hub to function as a universal remote.