--- product_id: 769300074 title: "Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security" brand: "heeucnon" price: "S$54" currency: SGD in_stock: true reviews_count: 3 category: "Heeucnon" url: https://www.desertcart.sg/products/769300074-signal-repeater-wireless-extender-433mhz-long-range-booster-barrier-free store_origin: SG region: Singapore --- # Stable & fast signal boost 500m wide coverage Barrier-free wall penetration Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security **Brand:** heeucnon **Price:** S$54 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your home security signal—never miss a beat, even through walls! ## Quick Answers - **What is this?** Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security by heeucnon - **How much does it cost?** S$54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/769300074-signal-repeater-wireless-extender-433mhz-long-range-booster-barrier-free) ## Best For - heeucnon enthusiasts ## Why This Product - Trusted heeucnon brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Boost Stability & Speed:** Amplifies signal strength between detector and host for faster, rock-solid connectivity. - • **Customizable Antenna Power:** Detachable antenna lets you tailor reception and transmission distance to your environment. - • **Expand Your Signal Horizon:** Covers up to 500 meters with multi-arc signal reach, eliminating dead zones. - • **Seamless Multi-Device Support:** Supports up to 5 detectors simultaneously, perfect for comprehensive home security setups. - • **Break Through Walls Like a Pro:** Wireless signal effortlessly passes through walls, ensuring no blind spots in your security. ## Overview The Signal Repeater Wireless Extender operates at 433MHz frequency, extending your home alarm system's wireless signal up to 500 meters with multi-arc coverage. Its barrier-free design ensures strong signal transmission through walls, eliminating blind spots. Featuring a detachable antenna and support for up to 5 detectors, it stabilizes and accelerates signal expansion for reliable, long-range security monitoring. ## Description Heeucnon Colour:WhiteMaterial:plasticPackage Contents:1 x signal repeaterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Review: Don’t buy return cost more than you pay it. - Bought for SimpliSafe, but does not work. The bigger problem is when you try to return the product. The get you a return label in Chinese, the cost mailing is higher than the product cost. Don’t buy. Review: Boost the signal from detectors to alarm system that uses wireless frequency 433MHz (ASK) - This will boost the signal from detectors to alarm systems that use wireless frequency 433MHz (ASK)/868MHz (FSK). • It has a built-in 3.7V 450mA polymer battery • It comes with a USB cable and charger • It supports up to 5 (manual says up to 99, I used for 5) different detectors 1. Put booster in learning mode by turning it on and then hold the "Learn" button for 1 second until all 5 lights light up 2. Now press Learn button 1 time and #1 remains lit 3. Start "Add new detector" (Accessory>Detector>+ sign) in the SmartLife app 4. You will hear "Please trigger the part" 5. Open then close a wireless detector on a window or door 6. Hopefully you will hear "Success" from the alarm system and "Success" pop-up in the app 7. Rename the detector to know which it is in the SmartLife app 8. Also, select "Device type" (Windows alarm, Door alarm, etc.) in the SmartLife app 9. Touch "Saved" 10. Repeat for detector #2: a. Put booster in learning mode again b. Press Learn button 2 times and #2 remains lit c. Open and close the next detector d. Rename the detector e. Select Device type f. Touch Saved 11. Repeat same steps for #3-5 I included a photo of my alarm system but will work with others that use the same frequency. "This specification defines a common, low-cost wireless RF standard for security systems, smart home devices, and remote controls. It utilizes ASK modulation on either 315MHz or 433MHz frequencies, supporting PT2262 (fixed code) or EV1527 (learning code) chips with a 4.7MΩ oscillation resistor for signal encoding, commonly used for smart alarms." Note: I had already added each detector without the booster so now I have two listings in the SmartLife app for each detector. Not sure if I need both, but I'm leaving them for now. ## Features - Wide coverage up to 500 meters: The multi-arc signal covers the corners where the signal is needed, helping to expand the signal sent by the signal detector, so that the host can receive it normally. - Strong signal through walls without blind spots: The wireless signal sent by the auxiliary detector passes through the wall, and the expander is added according to the specific environment to the blind spot of the signal. - Signal expansion is faster and more stable: Placing the paired amplifier between the detector and the host area can effectively help the detector to improve signal strength. - Detachable antenna: Install the antenna to increase the reception and transmission distance of the signal amplifier. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #2,287 in Repeaters | | Customer Reviews | 2.0 out of 5 stars 3 Reviews | ## Images ![Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security - Image 1](https://m.media-amazon.com/images/I/31M4VhvrO3L.jpg) ![Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security - Image 2](https://m.media-amazon.com/images/I/41DEO3s-P1L.jpg) ![Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security - Image 3](https://m.media-amazon.com/images/I/61ceNWXyuKL.jpg) ![Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security - Image 4](https://m.media-amazon.com/images/I/51xm3eHGqgL.jpg) ![Signal Repeater Wireless Extender 433MHz Long Range Booster Barrier-Free Through Walls for Home Alarm Security - Image 5](https://m.media-amazon.com/images/I/51M1VC+ifxL.jpg) ## Customer Reviews ### ⭐ Don’t buy return cost more than you pay it. *by J***R on March 24, 2026* Bought for SimpliSafe, but does not work. The bigger problem is when you try to return the product. The get you a return label in Chinese, the cost mailing is higher than the product cost. Don’t buy. ### ⭐⭐⭐⭐ Boost the signal from detectors to alarm system that uses wireless frequency 433MHz (ASK) *by C***O on March 4, 2026* This will boost the signal from detectors to alarm systems that use wireless frequency 433MHz (ASK)/868MHz (FSK). • It has a built-in 3.7V 450mA polymer battery • It comes with a USB cable and charger • It supports up to 5 (manual says up to 99, I used for 5) different detectors 1. Put booster in learning mode by turning it on and then hold the "Learn" button for 1 second until all 5 lights light up 2. Now press Learn button 1 time and #1 remains lit 3. Start "Add new detector" (Accessory>Detector>+ sign) in the SmartLife app 4. You will hear "Please trigger the part" 5. Open then close a wireless detector on a window or door 6. Hopefully you will hear "Success" from the alarm system and "Success" pop-up in the app 7. Rename the detector to know which it is in the SmartLife app 8. Also, select "Device type" (Windows alarm, Door alarm, etc.) in the SmartLife app 9. Touch "Saved" 10. Repeat for detector #2: a. Put booster in learning mode again b. Press Learn button 2 times and #2 remains lit c. Open and close the next detector d. Rename the detector e. Select Device type f. Touch Saved 11. Repeat same steps for #3-5 I included a photo of my alarm system but will work with others that use the same frequency. "This specification defines a common, low-cost wireless RF standard for security systems, smart home devices, and remote controls. It utilizes ASK modulation on either 315MHz or 433MHz frequencies, supporting PT2262 (fixed code) or EV1527 (learning code) chips with a 4.7MΩ oscillation resistor for signal encoding, commonly used for smart alarms." Note: I had already added each detector without the booster so now I have two listings in the SmartLife app for each detector. Not sure if I need both, but I'm leaving them for now. ### ⭐ No free return. Don't buy it *by L***A on March 30, 2026* I bought it for my alarm system, but it doesn't work. I tried to return it but found that I have to pay the return mailing. Don't buy it. --- ## 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.sg/products/769300074-signal-repeater-wireless-extender-433mhz-long-range-booster-barrier-free](https://www.desertcart.sg/products/769300074-signal-repeater-wireless-extender-433mhz-long-range-booster-barrier-free) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-30*