---
product_id: 684789317
title: "Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11"
brand: "x-sense"
price: "E£ 6453"
currency: EGP
in_stock: true
reviews_count: 5
category: "X Sense"
url: https://www.desertcart.com.eg/products/684789317-smart-mailbox-alarm-wireless-long-distance-mailbox-alert-mailbox-sensor
store_origin: EG
region: Egypt
---

# 50m long-range wireless 4-year battery life IP65 waterproof durability Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11

**Brand:** x-sense
**Price:** E£ 6453
**Availability:** ✅ In Stock

## Summary

> 📬 Stay ahead of your mail game—never miss a delivery or suspicious activity again!

## Quick Answers

- **What is this?** Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11 by x-sense
- **How much does it cost?** E£ 6453 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/684789317-smart-mailbox-alarm-wireless-long-distance-mailbox-alert-mailbox-sensor)

## 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-rated waterproof casing and UV-resistant shell guarantee performance rain or shine, summer or winter.
- • **Instant Mail Alerts, Anywhere:** Real-time push notifications keep you connected to your mailbox no matter where you are.
- • **Unmatched Long-Range Reliability:** Strong 2.4 GHz Wi-Fi connection ensures alerts up to 50 meters away, perfect for rural or urban mailboxes.
- • **Effortless Setup & Wireless Freedom:** 100% wire-free design with quick app integration—get protected in minutes without hassle.
- • **Customizable Alerts & Multi-User Sharing:** Choose from 7 ringtones, adjust volume up to 100 dB, and share access with family or roommates seamlessly.

## Overview

The X-Sense Smart Mailbox Alarm is a sleek, wireless contact sensor designed for curbside and wall-mounted mailboxes. It connects via 2.4 GHz Wi-Fi to the SBS50 base station, delivering instant push alerts to your smartphone through the X-Sense app. With a 50-meter transmission range, 100 dB customizable alarms, and a 4-year battery life, it offers reliable, weatherproof protection for your mail. Multi-user sharing and app control make it ideal for busy households seeking smart, hassle-free mailbox security.

## Description

Mailbox Alert, X-Sense Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11

Review: Rural mailbox, perfect. - Excellent product, highly recommend. Now that Canada Post is not putting up the red flag we found someone tampering with our mailbox, purchased this item and it works a charm, we know instantly when the mailbox has been opened. You cannot see our house from the road and we are surrounded with trees but the signal comes through just fine. It is nice to have 2 people to set it up, one on the phone app and the other reading the instructions because they are so small you need a magnifying glass. We don't have a router and use my phone as a hotspot, working perfectly. If you have a rural mailbox I highly suggest purchasing this product.
Review: Amazing Mailbox Alarm - I purchased this as a replacement and was blown away with how much superior this is to the old one I had. It does have the base station you need to setup, and I have this farther away from the mailbox than I ever have. The setup was simple, just install the app on your phone. Only took me a few minutes to get setup. The device for the mailbox is pretty flexible, there are different options for how to mount it depending on your mailbox setup. This works with a bunch of different types of mailboxes. Mine is a standard side of the road mailbox where the door flips down. This device is VERY sensitive and I've never missed an alert (again my old one wouldn't always register the door opened). You also have adjustments for the sensor to accommodate non-level ground or other anomalies in your installation. If I was critical about anything, it would be the instructions on mounting the sensor. There is an adjustment knob, which appears to allow you to adjust for uneven ground, but I couldn't find anything in the instructions. Luckily it wasn't an issue for me. Now some cool things.. the app gets a push notification from the base station when the mailbox is opened. The base station blinks red, you get an alert on your phone, and in the app you get a big red pop-up indicating the mailbox was opened. You have to press the little button on the back of the base station to turn off the alert. This means keep the base station handy. I really wish there was a way to reset it through the application. To be fair, there is an option in the app as to whether or not to flash red until you acknowledge it by pressing the button. The app is flexible, you can determine if you want an audible alarm, if you want it to sound once or until acknowledged. You can also change the sound it plays. 7 different options and multiple volume levels. Mine has barking dogs activated. As complete as this device is, I was a little annoyed that the sounds are labeled Tone 1, Tone 2, ... until Tone 7. You basically have to play each of them to figure out which one to use. You also have the option of what type of notifications. The device was triggered, when silenced, or if there is a low battery. Finally, the base station is the generic X-Sense base station, so it works with their other security products (door open, motion sensor, etc.) Bottom line, this is superior than any other mailbox alert system that I've had. The distance and reliability is awesome! I love that I get alerts on my mobile device. If you are in the market, I can't image how you could go wrong. Awesome device!!

## 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 Decibels |
| Battery Description | Lithium, Alkaline/Lithium |
| Battery description | Lithium , Alkaline/Lithium |
| Best Sellers Rank | #87,893 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Mailbox Hardware |
| Brand | X-Sense |
| Built-In Media | 1 x Instruction Manual, 1 x SBS50 Base Station, 1 x User Manual, 1 X Smart Mailbox Alarm SMA51 |
| Color | Black |
| Colour | Black |
| Compatible Devices | Smartphone, Tablet |
| Compatible devices | Smartphone, Tablet |
| Control Method | App |
| Customer Reviews | 4.3 out of 5 stars 1,320 Reviews |
| Item Dimensions L x W x H | 9.9L x 2.6W x 2.7H centimeters |
| Item Type Name | Smart Mailbox Alarm |
| Item height | 1.02 inches |
| Manufacturer | X-SENSE |
| Maximum Range | 50 Meters |
| Mounting Type | Wall Mount |
| Number of Batteries | 1 CR2 batteries required. (included) |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product dimensions | 9.9L x 2.6W x 2.7H centimeters |
| Sensor Technology | Contact Sensor |
| UPC | 850053675409 |

## Product Details

- **Colour:** Black
- **Brand:** X-Sense
- **Power source:** Battery Powered
- **Compatible devices:** Smartphone, Tablet
- **Product dimensions:** 9.9L x 2.6W x 2.7H centimeters

## Images

![Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11 - Image 1](https://m.media-amazon.com/images/I/61JsrJVrxqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Rural mailbox, perfect.
*by C***R on 13 August 2025*

Excellent product, highly recommend. Now that Canada Post is not putting up the red flag we found someone tampering with our mailbox, purchased this item and it works a charm, we know instantly when the mailbox has been opened. You cannot see our house from the road and we are surrounded with trees but the signal comes through just fine. It is nice to have 2 people to set it up, one on the phone app and the other reading the instructions because they are so small you need a magnifying glass. We don't have a router and use my phone as a hotspot, working perfectly. If you have a rural mailbox I highly suggest purchasing this product.

### ⭐⭐⭐⭐⭐ Amazing Mailbox Alarm
*by A***Y on 23 October 2024*

I purchased this as a replacement and was blown away with how much superior this is to the old one I had. It does have the base station you need to setup, and I have this farther away from the mailbox than I ever have. The setup was simple, just install the app on your phone. Only took me a few minutes to get setup. The device for the mailbox is pretty flexible, there are different options for how to mount it depending on your mailbox setup. This works with a bunch of different types of mailboxes. Mine is a standard side of the road mailbox where the door flips down. This device is VERY sensitive and I've never missed an alert (again my old one wouldn't always register the door opened). You also have adjustments for the sensor to accommodate non-level ground or other anomalies in your installation. If I was critical about anything, it would be the instructions on mounting the sensor. There is an adjustment knob, which appears to allow you to adjust for uneven ground, but I couldn't find anything in the instructions. Luckily it wasn't an issue for me. Now some cool things.. the app gets a push notification from the base station when the mailbox is opened. The base station blinks red, you get an alert on your phone, and in the app you get a big red pop-up indicating the mailbox was opened. You have to press the little button on the back of the base station to turn off the alert. This means keep the base station handy. I really wish there was a way to reset it through the application. To be fair, there is an option in the app as to whether or not to flash red until you acknowledge it by pressing the button. The app is flexible, you can determine if you want an audible alarm, if you want it to sound once or until acknowledged. You can also change the sound it plays. 7 different options and multiple volume levels. Mine has barking dogs activated. As complete as this device is, I was a little annoyed that the sounds are labeled Tone 1, Tone 2, ... until Tone 7. You basically have to play each of them to figure out which one to use. You also have the option of what type of notifications. The device was triggered, when silenced, or if there is a low battery. Finally, the base station is the generic X-Sense base station, so it works with their other security products (door open, motion sensor, etc.) Bottom line, this is superior than any other mailbox alert system that I've had. The distance and reliability is awesome! I love that I get alerts on my mobile device. If you are in the market, I can't image how you could go wrong. Awesome device!!

### ⭐⭐⭐⭐⭐ Mailbox Alarm, Security Camera and Hygrometer All Work Great
*by H***P on 10 July 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 Egypt*
*Store origin: EG*
*Last updated: 2026-02-23*