---
product_id: 599552438
title: "X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11"
brand: "x-sense"
price: "₱4973"
currency: PHP
in_stock: true
reviews_count: 9
category: "X Sense"
url: https://www.desertcart.ph/products/599552438-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert
store_origin: PH
region: Philippines
---

# 50m long-range wireless 4-year battery life 100 dB loud alert X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11

**Brand:** x-sense
**Price:** ₱4973
**Availability:** ✅ In Stock

## Summary

> 📬 Stay ahead of the mail game—because waiting is so last decade!

## Quick Answers

- **What is this?** X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 by x-sense
- **How much does it cost?** ₱4973 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/599552438-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert)

## Best For

- x-sense enthusiasts

## Why This Product

- Trusted x-sense brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Brave the Elements:** IP65 waterproof and UV-resistant shell ensures reliable performance rain or shine, summer or winter.
- • **Effortless, Wire-Free Setup:** 100% wireless design with easy double-sided tape installation—set up in minutes, no tools required.
- • **Seamless Multi-User Sharing:** Share access with family or roommates via the X-Sense app for effortless mail management.
- • **Instant Mail Alerts, Anywhere:** Get real-time push notifications the moment your mail arrives—never miss a delivery again.
- • **Expand Your Smart Home Security:** Connect up to 50 X-Sense devices to one base station for comprehensive indoor and outdoor monitoring.

## Overview

The X-Sense Smart Mailbox Alarm is a sleek, wireless sensor system that instantly alerts you via app when mail is delivered. Operating on a reliable 2.4 GHz Wi-Fi network with up to 50 meters range, it features a loud 100 dB alert, a 4-year battery life, and weatherproof durability. Compatible with multiple mailbox types and supporting multi-user sharing, it integrates seamlessly into your smart home ecosystem for ultimate convenience and security.

## Description

desertcart.com: X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 : Tools & Home Improvement

Review: It works as intended and is easy to install. - The X-Sense Smart Mailbox Alarm was easy to install. It had very clear instructions that were easy to follow. I've only tested it out 3 times so far, but it works exactly as it is supposed to. I was concerned because I have a 5g network for my computers, and the X-Sense is incompatible with 5g. But, because I connected it to my Apple iPhone X, it had no trouble connecting with 2.4g. The base station has a loud alert so I can hear it from other rooms in the house, and I also get a text message when the mailbox door is opened. The mail just came while I was writing this review, and it worked like a charm. I was a little leery, but this is an awesome product and is well worth the price. I just hope the mail person does not break it for me. They constantly jam oversized packages into the mail box using the theory that anything will fit with sufficient force. But I am more than satisfied with the mailbox alarm, the ease of installation, and the good instructions.
Review: Better than Ring Mailbox Sensor, Working Great at 100' - According to Google Maps, the sensor and base station are 100' from each other, though it's probably a little less (I did some manual measuring but did not want to run my reel tape across the street). Please see the associated picture for my setup. The base station is in my garage on large, cluttered steel shelving, and we have a metal garage door and stucco exterior. The mailbox is also metal, and although the company recommends installing the sensor on the outside of a metal mailbox, that's unreasonable if you think someone might be stealing your mail since they could just slide the sensor right off. So I installed it inside the mailbox. Part of the reason I got the sensor was neighbors complaining about their mail being stolen, but using "USPS Informed Delivery" I can see what I am expecting each day, and an alert from this sensor lets me grab the mail as soon as it arrives if I'm home. It's only been installed a few days but so far it has worked 100% of the time (as confirmed by my own testing and Ring cameras which snapshot every 30 seconds). My mailbox was here when we moved in, and it's a bit unusual. It has a swinging top portion and a locked lower portion. When the mail is delivered, the top portion opens enough that mail can come in, but not your hand, since there is a metal guard that also flips up. I installed the sensor on the lower, inside portion of the metal flap, so it does not block mail delivery (again, see photos), but that means there is always one or two layers of metal between the sensor and the outside which I was afraid would block the signal. In fact, I previously purchased a Ring mailbox sensor that never successfully alerted me to any mail. It triggered in a few tests, but was never reliable inside the box despite the huge antenna. One reason I bought the X-Sense was the separate base station, which could be closer to the mailbox than the Ring Bridge. Ring only lets you have one Bridge, and moving it to the front corner of the garage sacrificed the connection to the lights at the back of our property and still didn't detect the mail. Now the Ring Bridge is in the back of the house, and the X-Sense Base Station is in the Garage. The Ring Sensor might have theoretically been able to trigger cameras that would record who was accessing the mailbox, but since it never worked at all, it was a moot point. On sale, these units cost about the same (even with the X-Sense base station included). The X-Sense is also smaller and easier to install as well as being more effective and reliable. Contrary to another recent review, the app definitely works on Android. I am using a Pixel 6a (2.5yrs old at the time of my review) and it has no issues. Perhaps the other reviewer had a phone that was limited to an out of date Android OS. I am on Android 15. All in all, 5 stars! It even came with two adhesive pads for the backer. My only gripe is that has a two minute delay after triggering before it will trigger again, and I'd like to be able to adjust that timer, but I understand the reasoning.

## Features

- Note: Compatible only with 2.4 GHz Wi-Fi (incompatible with 5.0 GHz); connects to the X-Sense Home Security App via the included base station
- Real-Time Push Alerts & Multi-User Sharing: The moment your mail arrives, you'll receive an instant app push alert; manage various features from your phone, such as device sharing, mail reminder, one-button silence, adjusting volume up to 100 dB, and ringtone selection
- Long-Distance Transmission, Accurate Detection: With extensive coverage, the smart mailbox alarm maintains a strong and reliable connection to the base station via a 2.4 GHz Wi-Fi network, and promptly sends notifications to your phone
- Compatibility with Various Mailbox Types: This mailbox alarm is designed with a sleek and compact profile; compatible with curbside/post mount, wall mount, slot type, and cluster type mailboxes; not suitable for mail slots without lids
- Extra Long Standby, Easy Setup: The replaceable battery offers a long 4-year lifespan based on 5 daily triggers; the alarm is 100% wire-free and easy to install using the double-sided tape included; following the in-app instructions, simply add it to the X-Sense app in seconds
- Built for All-Weather Durability: With its IP65 waterproof rating and an operating temperature range of 14–140°F (-10–60°C), this wireless mailbox alarm operates reliably even in extreme weather; ASA shell and silicone seal prevent fading caused by sunlight and UV rays
- Customize Your Home Safety System: Includes 1 mailbox alarm and 1 SBS50 base station; each base station can add 50 X-Sense devices, providing complete coverage for both your indoor and outdoor properties; customize your device names for easy location and management as needed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CPLQ16K7 |
| Audible Noise | 100 db |
| Battery Description | Lithium |
| Best Sellers Rank | #23,843 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Post-Mount Mailboxes |
| Brand | X-Sense |
| Built-In Media | 1 X Smart Mailbox Alarm, 1 X SBS50 Base Station, 1 X User Manual |
| Color | Black |
| Compatible Devices | Smartphone |
| Control Method | App |
| Customer Reviews | 4.3 out of 5 stars 1,505 Reviews |
| Item Dimensions L x W x H | 3.91"L x 1.02"W x 1.06"H |
| Item Type Name | mailbox alarm |
| Manufacturer | X-SENSE |
| Maximum Range | 50 meters |
| Mfr Part Number | X-SENSE |
| Model Number | SMA11 |
| Mounting Type | Protruding |
| Number of Batteries | 1 CR2 batteries required. (included) |
| Power Source | Battery Powered |
| Product Dimensions | 3.91"L x 1.02"W x 1.06"H |
| Sensor Technology | Infrared Sensor |
| Size | 1 Alarm + Base Station |
| UPC | 850053675409 |
| Voltage | 3 volts |
| Wattage | 1000 milliamp_hours |

## Product Details

- **Brand:** X-Sense
- **Color:** Black
- **Compatible Devices:** Smartphone
- **Power Source:** Battery Powered
- **Product Dimensions:** 3.91"L x 1.02"W x 1.06"H

## Images

![X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 - Image 1](https://m.media-amazon.com/images/I/61JsrJVrxqL.jpg)
![X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 - Image 2](https://m.media-amazon.com/images/I/617W2EqMrnL.jpg)
![X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 - Image 3](https://m.media-amazon.com/images/I/61BzIWlfsLL.jpg)
![X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 - Image 4](https://m.media-amazon.com/images/I/61ARKm9QQxL.jpg)
![X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11 - Image 5](https://m.media-amazon.com/images/I/61hPCn-zjxL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works as intended and is easy to install.
*by S***Y on April 15, 2026*

The X-Sense Smart Mailbox Alarm was easy to install. It had very clear instructions that were easy to follow. I've only tested it out 3 times so far, but it works exactly as it is supposed to. I was concerned because I have a 5g network for my computers, and the X-Sense is incompatible with 5g. But, because I connected it to my Apple iPhone X, it had no trouble connecting with 2.4g. The base station has a loud alert so I can hear it from other rooms in the house, and I also get a text message when the mailbox door is opened. The mail just came while I was writing this review, and it worked like a charm. I was a little leery, but this is an awesome product and is well worth the price. I just hope the mail person does not break it for me. They constantly jam oversized packages into the mail box using the theory that anything will fit with sufficient force. But I am more than satisfied with the mailbox alarm, the ease of installation, and the good instructions.

### ⭐⭐⭐⭐⭐ Better than Ring Mailbox Sensor, Working Great at 100'
*by J***W on January 11, 2025*

According to Google Maps, the sensor and base station are 100' from each other, though it's probably a little less (I did some manual measuring but did not want to run my reel tape across the street). Please see the associated picture for my setup. The base station is in my garage on large, cluttered steel shelving, and we have a metal garage door and stucco exterior. The mailbox is also metal, and although the company recommends installing the sensor on the outside of a metal mailbox, that's unreasonable if you think someone might be stealing your mail since they could just slide the sensor right off. So I installed it inside the mailbox. Part of the reason I got the sensor was neighbors complaining about their mail being stolen, but using "USPS Informed Delivery" I can see what I am expecting each day, and an alert from this sensor lets me grab the mail as soon as it arrives if I'm home. It's only been installed a few days but so far it has worked 100% of the time (as confirmed by my own testing and Ring cameras which snapshot every 30 seconds). My mailbox was here when we moved in, and it's a bit unusual. It has a swinging top portion and a locked lower portion. When the mail is delivered, the top portion opens enough that mail can come in, but not your hand, since there is a metal guard that also flips up. I installed the sensor on the lower, inside portion of the metal flap, so it does not block mail delivery (again, see photos), but that means there is always one or two layers of metal between the sensor and the outside which I was afraid would block the signal. In fact, I previously purchased a Ring mailbox sensor that never successfully alerted me to any mail. It triggered in a few tests, but was never reliable inside the box despite the huge antenna. One reason I bought the X-Sense was the separate base station, which could be closer to the mailbox than the Ring Bridge. Ring only lets you have one Bridge, and moving it to the front corner of the garage sacrificed the connection to the lights at the back of our property and still didn't detect the mail. Now the Ring Bridge is in the back of the house, and the X-Sense Base Station is in the Garage. The Ring Sensor might have theoretically been able to trigger cameras that would record who was accessing the mailbox, but since it never worked at all, it was a moot point. On sale, these units cost about the same (even with the X-Sense base station included). The X-Sense is also smaller and easier to install as well as being more effective and reliable. Contrary to another recent review, the app definitely works on Android. I am using a Pixel 6a (2.5yrs old at the time of my review) and it has no issues. Perhaps the other reviewer had a phone that was limited to an out of date Android OS. I am on Android 15. All in all, 5 stars! It even came with two adhesive pads for the backer. My only gripe is that has a two minute delay after triggering before it will trigger again, and I'd like to be able to adjust that timer, but I understand the reasoning.

### ⭐⭐⭐⭐⭐ Mailbox Alarm, Security Camera and Hygrometer All Work Great
*by H***P on July 10, 2024*

Overall easy set up, good connection, work great. General: 1. Every item has an easy step up. 2. The range seems to be great. I've installed some smart switches, smart bulbs, and outlets that are quite touchy and don't have very good range, but not these. Seem to come right back when we loose power. Knock on wood, we haven't had problems with them going offline. 3. I saw a comments that you can't assign multiple accounts to the base station. This true, but you can put them all on one account and share them and that works fine. Note that the Mailbox Alarm and Hygrometer/Thermometers all share when added to the base station. For the Cameras you have to share each one individually. 4. These units all take "normal" batteries (triple or double AA, can't remember which) except the camera which have built in lithium rechargables. The app shows the battery strength which is handy. 5. I think the dashboard would be better if you had an option to see a tabular (spreadsheet style) display, especially if you have a lot of devices. App in general works well, but could be better. 6. No subscription required to get functionality Mailbox Alarm: Our mailbox is over 200 feet away and there is no line of sight, so I was concerned this would work but no problem. Hygrometers/Thermometers: These were $10 off for 3 with a base station, so that was cheaper then buying them individually. We have them outside (On a covered porch) and all over the house. We use some fans to move air from a finished basement to the upstairs to cut down on the AC. These have helped us improve the placement. Has an export data function, but I haven't tried it yet. Cameras: 1. You can get a cloud service subscription, but you don't have to. Motion sensing works great. At medium it triggers on people but not the cats. 2. We are mostly shady, but the solar cells seem to draw enough to keep the cameras charged up. You need to get a SD card per camera if you want to store and retrieve. 3. The share function requires more steps and has to be done for each camera. Seemed to lag from when you shared to when you could access, but they all eventually worked (maybe 5 minutes?). Could be because some where updating firmware. 4. These work where other items were not able to get on the WIFi. 5. There is some lag in the motion alarm and the actual motion. 6. You get a mic and speaker on each camera. Work fine with few second lag. 7. Each camera takes it's own SD card. Supposed to be able to download, but I haven't found that. 8. Viewing the recorded videos is 3 steps in the app (Click camera, then gear, then history) Would be better right Camera click. Not the greatest for picking out recordings (you have to scroll a line to a dot) but it all works. Mailbox Alarm, Security Cameras and Hygrometer All Work Great

## Frequently Bought Together

- X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11
- X-Sense Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51
- X-Sense Smart Home Security System, Wireless Home Alarm System 8-Piece Kit, Supports Mobile App Alerts, Compatible with Alexa, Includes 1 Base Station, 4 Door Sensors, 2 Motion Sensors, 1 Keypad, AS08

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-07-24*