--- product_id: 206728817 title: "RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT" brand: "broadlink" price: "NT$1989" currency: TWD in_stock: true reviews_count: 13 category: "Broadlink" url: https://www.desertcart.tw/products/206728817-rm4mini-smart-remote-hub-with-sensor-cable-wifi-ir-blaster store_origin: TW region: Taiwan --- # Supports 50,000+ IR devices Built-in temp & humidity sensor Voice control via Alexa/Google/IFTTT RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT **Brand:** broadlink **Price:** NT$1989 **Availability:** ✅ In Stock ## Summary > 📲 Transform your home into a smart sanctuary with just one sleek hub! ## Quick Answers - **What is this?** RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT by broadlink - **How much does it cost?** NT$1989 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/206728817-rm4mini-smart-remote-hub-with-sensor-cable-wifi-ir-blaster) ## Best For - broadlink enthusiasts ## Why This Product - Trusted broadlink brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Scenes & Timers:** Automate your lifestyle by creating personalized scenes and schedules that sync all your devices. - • **Remote Access Anywhere:** Control your IR devices from anywhere via the BroadLink app—never miss a beat at home or away. - • **Smart Voice Command Hub:** Effortlessly control your home with Alexa, Google Assistant, Siri, or IFTTT voice commands. - • **Real-Time Climate Insights:** Monitor and react to your room’s temperature and humidity with the integrated sensor and app alerts. - • **Universal IR Control Master:** Seamlessly manage 255+ IR devices from TV to AC with a constantly updated cloud library. ## Overview The BroadLink RM4mini is a compact Wi-Fi IR blaster that supports over 50,000 infrared-controlled devices, enabling universal remote control for TVs, air conditioners, and more. Compatible with Alexa, Google Assistant, Siri, and IFTTT, it offers voice control, remote access via the BroadLink app, and customizable automation scenes. Featuring a built-in temperature and humidity sensor, it provides real-time environmental data to optimize your smart home experience. Designed for 2.4GHz Wi-Fi networks, this hub empowers millennials to effortlessly integrate and automate their living spaces with style and precision. ## Description Product description Control from Anywhere By using the BroadLink app, remotely control your IR devices no matter you are at home or away! Works with Alexa, Google Assistant and IFTTT Works with Alexa/Google Assistant to control of your IR appliances by saying "Alexa, turn on TV"! Timer Control Schedule a timer to make your infrared device work! Customize Different Scenes A simple tap to start preset scene, or automatically interact with other BroadLink devices! Share Joy with Family Simply share your device with other family members with limited permissions! Temperature & Humidity Detection Real-time data is displayed in the BroadLink APP, allowing you to check your room's temperature and humidity anytime, anywhere. Broadlink Bulid Your Life Broadlink RM4 Mini S Broadlink RM4 Pro S Broadlink Smart Plug Smart Motion Sensor Broadlink Light Switch Why can't I connect to WiFi? 1) The Wi-Fi signal is not 2.4GHz but 5Ghz or a 2.4G/5G mixed, and BroadLink can only support 2.4GHz WIFI; 2) The SSID and Password of the Wi-Fi exceed 32 characters or contain special characters (not ASCII) Why can't I connect to WiFi? 1) The Wi-Fi signal is not 2.4GHz but 5Ghz or a 2.4G/5G mixed, and BroadLink can only support 2.4GHz WIFI; 2) The SSID and Password of the Wi-Fi exceed 32 characters or contain special characters (not ASCII) How do I know if my Wi-Fi signal is 2.4Ghz or not? It is recommended to check the router settings, usually the router's Wi-Fi settings will show the Wi-Fi relevant information. How do I know if my Wi-Fi signal is 2.4Ghz or not? It is recommended to check the router settings, usually the router's Wi-Fi settings will show the Wi-Fi relevant information. How do I know if my appliances are compatible? Generally speaking, if it is infrared remote control device, our products can learn and control. However, it should be noted that our product does not support Bluetooth signals, so it cannot work with Bluetooth remote control. How do I know if my appliances are compatible? Generally speaking, if it is infrared remote control device, our products can learn and control. However, it should be noted that our product does not support Bluetooth signals, so it cannot work with Bluetooth remote control. The signal is too weak? I can't find the signal. There should be no block between the devices and RM4 mini when use it. IR signal can’t transmitted through obstacle, you should place it at the right signal covering range. The signal is too weak? I can't find the signal. There should be no block between the devices and RM4 mini when use it. IR signal can’t transmitted through obstacle, you should place it at the right signal covering range. Where can I get help if the product doesn't work? If the product does not work, in the BroadLink App, tap "Me" - "Contact", to get our professional support directly. Where can I get help if the product doesn't work? If the product does not work, in the BroadLink App, tap "Me" - "Contact", to get our professional support directly. Review: Works Great! Read to setup w/router with same SSID for both 2.4/5 ghz bands. PLUS other Alexa tips! - BroadLink RM4 mini Universal Remote First of all I had trouble setting it up when my Router is set to “Smart Connect” which allows devices to automatically connect to either the 2.4 Ghz or 5 Ghz Wi-Fi bands. To work around this I temporarily disabled “Smart Connect” feature on the router so I could to complete the initial setup of the BroadLink RM4. Once the RM4 was successfully connected to my network after its initial setup - I was able to re-enable “Smart Connect” feature on my Router and then after a router reboot all of my devices were able to automatically connect as before… even the BroadLink RM4. I’ve only experienced this configuration setup issue with 3 smart home “2.4 Ghz Only” devices: 2 BroadLink devices and the other one was Sanoff RF Hub. All my many other devices (Wemo, Wink, August, desertcart – to name a few) that only use the 2.4 Ghz Band worked great with “Smart Connect” enabled on my router so I believe the issue is with the setup software of the two manufacture’s that don’t work - in this case the BroadLink App. I bought this device to issue IR commands with my desertcart Echo voice – Specifically my TCL Roku TV which I can normally control from my Echo via the network commands - except when the TV is set to Energy Saving mode with Fast Start disabled and the TV has been powered off for more than 12 minutes. Then I must first use the IR Remote to power it on. Which is where the BroadLink RM4 comes in. At first I added the remote for my “ROKU TV – IR”– as a TV Remote which is available for my desertcart Echo. The remotes they had on file were flaky on the power button so I created my own and used the Learn Feature to assign to the power button. Next, I added the command to my desertcart Alexa App’s “TV” Routine that I previously created. I just added the device “ROKU TV – IR” to Power On at the top of the TV Routine since it takes a couple seconds longer to power on the TV when fast start is disabled. I left the original power command that is sent via network control in the routine which is further down in the routine after all of the lighting controls. This Alexa “TV” routine worked perfectly when I say, “Computer TV” – it first sends the power button IR Code to the TV then processes the rest of the routine normally. NEXT, I added the eROD Motorized Drapery Rod’s remote to the BroadLink RM4’s App. This time I selected User Defined Remote. I added the three buttons: OPEN, CLOSE, & STOP and it easily learned their IR commands. I was able to control the curtains perfectly with the remote. THEN I added a Scene in the BroadLink App. I chose the General Scene type so that I could control the IR eROD Remote I had just created. I named it “Curtains OPEN” and set it to activate the Open Button on the eROD remote I made. I then created Scenes for both the Close and Stop commands as well. Next I created an Alexa Routine, “Open Curtains” and then added Smart Home activity which controls the Scene “Curtains Open” I created with in the BroadLink App and is published in the Alexa scenes. I also created Alexa Routines, “Close Curtains” & “Stop Curtains” which control there corresponding scenes. I also added the Smart Home activity which controls the Scene “Curtains Close” scene to the Alexa “TV” Routine I talked about earlier. Everything worked as expected. Later on I removed the ROKU TV “TV type remote” and recreated it as a User Defined Remote instead. Then I added & learned the POWER button. Next I added a Scene in the BroadLink app that activates that button. Once that was complete I then added the Smart Home activity which controls the “ROKU TV POWER - IR” scene to the Alexa “TV” Routine I talked about earlier. This method works better for me since when I originally created the “ROKU TV” remote I selected the “TV Remote” type and only assigned IR commands to the power button and that left a remote inside the BroadLink App with only the power button working… the rest of the buttons did not work because I didn’t assign them IR commands. Besides the BroadLink App discovered my TCL ROKU TV via the network and is available if the TV is powered on and so I wanted to get rid of the original “TV Remote” type I created with mostly non-working remote and create one using the “User Defined” type with only one button instead. All in all - I am extremely happy with the BroadLink RM4 IR control capabilities. It’s much better than using Harmony Hub to control devices like the Curtains or other devices that would automatically end activities running when you start another. I have already ordered a second BroadLink RM4 Mini with sensor cable to migrate some devices away from my Harmony Hub that interfere with its primary activities. I think Harmony Hub is stupid to end the active “Watch Movie” activity (Which turns off the Projector and surround sound when the automated sunset closing of the curtains is kicked off. A major issue with Harmony Hub. FYI: Sensor cable – with built in temp & humidity sensors. So far only the current temp is available with desertcart Echo – which is seen as a temperature sensor to the desertcart Echo. Alexa does not currently support the humidity function. However, hourly temp & humidity data readings are available inside the BroadLink App. I named my temperature sensor, “Living Room” inside the BroadLink App. So now I can say, “Computer, What is the Living Room Temperature?” Alexa responds, “The Living Room Temperature is 75.1 degrees!” I also created a Group in the Alexa App named, “Inside” and added the Living Room temperature sensor to that group. So I can also ask, “Computer, What is the Inside Temperature?” I know this review was rather long, but I wanted to add some “how to” information and issue work arounds I did that other users have reported as issues while setting up their BroadLink RM4 Mini to help fill in the gaps for the somewhat lacking instructions on how to setup and configure the device and BroadLink app. Happy Automating and thanks for reading! Review: Nifty device! - Works like a charm. Lost my ac remote a long time ago and this works great. I can even turn it on from work now so my place gets cool by the time I get back. Also able to control a lot of other electronics in my place. ## Features - 【HIGH COMPATIBILITY】: BroadLink RM4 mini Wi-Fi smart IR hub supports 50,000+ IR (38Khz) controlled entertainment and life appliances, such as TV, Air Conditioner, Set top box, Streaming player, Video Recorder, DVD, Projector, Amplifier, Home Theater, Sound Bar, Home Stereo, Fan, etc. Supported IR library is constantly being updated by the cloud to ensure newer devices are always compatible. Option to program the ir remote devices and learn buttons if no available cloud data is matching with. - 【TV / AC CONTROL】: – Voice control your TV with On/Off, Volume control, Change channel by number/name, Switch input, Play, Fast forward, Rewind, Pause, Stop, Previous, Next…Smart AC controller, voice control your aircon with On/Off, Temperature, Fan speed, mode…With free easy-to-use BroadLink App for iOS and Android, your phone will be a smart remote, you can remotely control your IR devices no matter you are at home or away. - 【VOICE CONTROL AND IFTTT】: Works with Alexa or Google Assistant and IFTTT (“BroadLink” skill/service). An ideal alexa/google home accessories for home. Simple setup with desertcart Echo or Google Nest to easily voice control your IR devices, and more home automation settings can be added by IFTTT. Siri voice control is also available on iPhone. - 【FEATURES】: Create multiple timers and customized scenes as you need to control your smart home devices. Simple and easy setup to create a smart house for you. Supports external Temperature and Humidity detection of the room where the device located, which will be displayed in BroadLink App. You can easily set triggers, such as turn on your air conditioner automatically when the temperature rises. - 【QUALITY & TECH SUPPORT】: NOTE: Require a secured 2.4GHz Wi-Fi networks. 5G Wi-Fi signal and mesh network are not supported. The package comes with a USB sensor cable (without 5V1A adapter). RM4mini is a IR smart remote, does not work with RF(Radio Frequency). If you also want to control RF appliances, pls choose our RM4 pro. If you have any problem with the IR hub connection problem, pls feel free to contact us. - 【NOTE】: There should be no block between the devices and RM4 mini when use it. IR signal can’t transmitted through obstacle; Make sure your phone is connected to 2.4GHz Wi-Fi network before adding device (5GHz is not supported); The Wi-Fi password should contain no more than 32 characters and no special characters; Mesh network is not supported; It could not work with Bluetooth remote control devices ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0872PPSGM | | Additional Features | Universal | | Battery Type | Lithium-Ion | | Best Sellers Rank | #31,872 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #38 in Home Automation Hubs & Controllers | | Brand | Broadlink | | Button Quantity | 1 | | Color | black | | Compatible Devices | Home Theater | | Connectivity Technology | Wi-Fi | | Controller Type | amazon_alexa | | Customer Reviews | 4.2 out of 5 stars 3,452 Reviews | | Item Weight | 2.1 Ounces | | Manufacturer | Hangzhou BroadLink Technology Co., Ltd. | | Max Number of Supported Devices | 255 | | Maximum Number of Supported Devices | 255 | | Maximum Range | 8 Meters | | Mfr Part Number | RM4 mini | | Model Name | RM4 mini | | Model Number | RM4 mini S | | Number of Batteries | 2 AAA batteries required. | | Smart Home Compatibility | Smart Home Compatible | | Special Feature | Universal | | Warranty Description | 1 year | ## Product Details - **Brand:** Broadlink - **Color:** black - **Compatible Devices:** Home Theater - **Max Number of Supported Devices:** 255 - **Special Feature:** Universal ## Images ![RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Image 1](https://m.media-amazon.com/images/I/61BbWXPaHGL.jpg) ![RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Image 2](https://m.media-amazon.com/images/I/61dICO+T0aL.jpg) ![RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Image 3](https://m.media-amazon.com/images/I/51GZoJoYpGL.jpg) ![RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Image 4](https://m.media-amazon.com/images/I/51cfVoIbPvL.jpg) ![RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Image 5](https://m.media-amazon.com/images/I/51kjOme4x6L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Why can't I connect to WiFi?** A: 1) The Wi-Fi signal is not 2.4GHz but 5Ghz or a 2.4G/5G mixed, and BroadLink can only support 2.4GHz WIFI; 2) The SSID and Password of the Wi-Fi exceed 32 characters or contain special characters (not ASCII) **Q: How do I know if my Wi-Fi signal is 2.4Ghz or not?** A: It is recommended to check the router settings, usually the router's Wi-Fi settings will show the Wi-Fi relevant information. **Q: How do I know if my appliances are compatible?** A: Generally speaking, if it is infrared remote control device, our products can learn and control. However, it should be noted that our product does not support Bluetooth signals, so it cannot work with Bluetooth remote control. **Q: The signal is too weak? I can't find the signal.** A: There should be no block between the devices and RM4 mini when use it. IR signal can’t transmitted through obstacle, you should place it at the right signal covering range. **Q: Where can I get help if the product doesn't work?** A: If the product does not work, in the BroadLink App, tap "Me" - "Contact", to get our professional support directly. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Great! Read to setup w/router with same SSID for both 2.4/5 ghz bands. PLUS other Alexa tips! *by K***A on August 16, 2020* BroadLink RM4 mini Universal Remote First of all I had trouble setting it up when my Router is set to “Smart Connect” which allows devices to automatically connect to either the 2.4 Ghz or 5 Ghz Wi-Fi bands. To work around this I temporarily disabled “Smart Connect” feature on the router so I could to complete the initial setup of the BroadLink RM4. Once the RM4 was successfully connected to my network after its initial setup - I was able to re-enable “Smart Connect” feature on my Router and then after a router reboot all of my devices were able to automatically connect as before… even the BroadLink RM4. I’ve only experienced this configuration setup issue with 3 smart home “2.4 Ghz Only” devices: 2 BroadLink devices and the other one was Sanoff RF Hub. All my many other devices (Wemo, Wink, August, Amazon – to name a few) that only use the 2.4 Ghz Band worked great with “Smart Connect” enabled on my router so I believe the issue is with the setup software of the two manufacture’s that don’t work - in this case the BroadLink App. I bought this device to issue IR commands with my Amazon Echo voice – Specifically my TCL Roku TV which I can normally control from my Echo via the network commands - except when the TV is set to Energy Saving mode with Fast Start disabled and the TV has been powered off for more than 12 minutes. Then I must first use the IR Remote to power it on. Which is where the BroadLink RM4 comes in. At first I added the remote for my “ROKU TV – IR”– as a TV Remote which is available for my Amazon Echo. The remotes they had on file were flaky on the power button so I created my own and used the Learn Feature to assign to the power button. Next, I added the command to my Amazon Alexa App’s “TV” Routine that I previously created. I just added the device “ROKU TV – IR” to Power On at the top of the TV Routine since it takes a couple seconds longer to power on the TV when fast start is disabled. I left the original power command that is sent via network control in the routine which is further down in the routine after all of the lighting controls. This Alexa “TV” routine worked perfectly when I say, “Computer TV” – it first sends the power button IR Code to the TV then processes the rest of the routine normally. NEXT, I added the eROD Motorized Drapery Rod’s remote to the BroadLink RM4’s App. This time I selected User Defined Remote. I added the three buttons: OPEN, CLOSE, & STOP and it easily learned their IR commands. I was able to control the curtains perfectly with the remote. THEN I added a Scene in the BroadLink App. I chose the General Scene type so that I could control the IR eROD Remote I had just created. I named it “Curtains OPEN” and set it to activate the Open Button on the eROD remote I made. I then created Scenes for both the Close and Stop commands as well. Next I created an Alexa Routine, “Open Curtains” and then added Smart Home activity which controls the Scene “Curtains Open” I created with in the BroadLink App and is published in the Alexa scenes. I also created Alexa Routines, “Close Curtains” & “Stop Curtains” which control there corresponding scenes. I also added the Smart Home activity which controls the Scene “Curtains Close” scene to the Alexa “TV” Routine I talked about earlier. Everything worked as expected. Later on I removed the ROKU TV “TV type remote” and recreated it as a User Defined Remote instead. Then I added & learned the POWER button. Next I added a Scene in the BroadLink app that activates that button. Once that was complete I then added the Smart Home activity which controls the “ROKU TV POWER - IR” scene to the Alexa “TV” Routine I talked about earlier. This method works better for me since when I originally created the “ROKU TV” remote I selected the “TV Remote” type and only assigned IR commands to the power button and that left a remote inside the BroadLink App with only the power button working… the rest of the buttons did not work because I didn’t assign them IR commands. Besides the BroadLink App discovered my TCL ROKU TV via the network and is available if the TV is powered on and so I wanted to get rid of the original “TV Remote” type I created with mostly non-working remote and create one using the “User Defined” type with only one button instead. All in all - I am extremely happy with the BroadLink RM4 IR control capabilities. It’s much better than using Harmony Hub to control devices like the Curtains or other devices that would automatically end activities running when you start another. I have already ordered a second BroadLink RM4 Mini with sensor cable to migrate some devices away from my Harmony Hub that interfere with its primary activities. I think Harmony Hub is stupid to end the active “Watch Movie” activity (Which turns off the Projector and surround sound when the automated sunset closing of the curtains is kicked off. A major issue with Harmony Hub. FYI: Sensor cable – with built in temp & humidity sensors. So far only the current temp is available with Amazon Echo – which is seen as a temperature sensor to the Amazon Echo. Alexa does not currently support the humidity function. However, hourly temp & humidity data readings are available inside the BroadLink App. I named my temperature sensor, “Living Room” inside the BroadLink App. So now I can say, “Computer, What is the Living Room Temperature?” Alexa responds, “The Living Room Temperature is 75.1 degrees!” I also created a Group in the Alexa App named, “Inside” and added the Living Room temperature sensor to that group. So I can also ask, “Computer, What is the Inside Temperature?” I know this review was rather long, but I wanted to add some “how to” information and issue work arounds I did that other users have reported as issues while setting up their BroadLink RM4 Mini to help fill in the gaps for the somewhat lacking instructions on how to setup and configure the device and BroadLink app. Happy Automating and thanks for reading! ### ⭐⭐⭐⭐⭐ Nifty device! *by D***W on March 23, 2026* Works like a charm. Lost my ac remote a long time ago and this works great. I can even turn it on from work now so my place gets cool by the time I get back. Also able to control a lot of other electronics in my place. ### ⭐⭐⭐⭐ It works but... *by D***M on March 8, 2024* It works but it's lacking a little. I bought it to turn on/off my AC when the temperature in the room hits certain thresholds. I bought the thermometer cable accessory, the unit by itself wont read temperature, you need the cable. The problem I have is the temperature thresholds are in increments of (2ish Fahrenheit) So you kinda need to experiment with what works for you. I say this because if X temperature is too cold for you and you want it to turn off when it goes below that, it might not be able to turn off until it gets even colder. IE, I found that when my room became 76F, my room was too cold, but the thresholds around that temperature are 75.2F and 77F. So you either need to wait until you are colder than too cold or turn it off early. First world problems, I know. But, I wish they had more temperature options. Also, the apps wording looks like it was written by someone whose English is their 7th language. Overall it was fairly easy to setup and get going, but lacks a bit of fine tuning customization. I would recommend it if you are lazy like me and want to automate things. ## Frequently Bought Together - BroadLink RM4mini Smart Remote Hub with Sensor Cable -WiFi IR Blaster for TV Remote, Smart AC Controller, Works with Alexa/Google Home/IFTTT - Amazon Echo Dot (newest model), Vibrant sounding Alexa speaker, Great for bedrooms, dining rooms and offices, Charcoal - Amazon Echo Pop (newest model), Our smallest Alexa speaker, Fits in any room, Charcoal --- ## 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.tw/products/206728817-rm4mini-smart-remote-hub-with-sensor-cable-wifi-ir-blaster](https://www.desertcart.tw/products/206728817-rm4mini-smart-remote-hub-with-sensor-cable-wifi-ir-blaster) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-05-17*