---
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: "AED 255"
currency: AED
in_stock: true
reviews_count: 5
category: "X Sense"
url: https://www.desertcart.ae/products/684789317-smart-mailbox-alarm-wireless-long-distance-mailbox-alert-mailbox-sensor
store_origin: AE
region: United Arab Emirates
---

# 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:** AED 255
**Availability:** ✅ In Stock

## Summary

> 📬 Stay ahead of your mail game with smart alerts that keep you connected!

## 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?** AED 255 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/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

- • **Customizable Loud Alerts:** Choose from 7 ringtones and adjust volume up to 100 dB on the base station to suit your home environment.
- • **Effortless Wireless Setup:** 100% wire-free installation with included double-sided tape—set up in minutes, no tools required.
- • **Built to Brave the Elements:** IP65-rated waterproof and UV-resistant shell ensures reliable performance rain or shine.
- • **Seamless Multi-User Sharing:** Share alerts effortlessly with family or roommates via the X-Sense app for total household awareness.
- • **Instant Mail Alerts, Anywhere:** Get real-time push notifications the moment your mailbox opens—never miss a delivery again.

## Overview

The X-Sense Smart Mailbox Alarm SMA11 combines long-range 2.4 GHz wireless connectivity with a robust IP65 waterproof design and a 4-year battery life. It delivers instant push notifications via the X-Sense app, supports multi-user sharing, and offers customizable alert tones up to 100 dB. Easy to install and compatible with various mailbox types, it’s the ultimate smart security upgrade for your mail.

## Description

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

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: Great for Parcel Letterbox - The X-Sense mailbox alarm SMA11 which includes the SBS50 base station and the SMA51 sensor works brilliantly. The sensor is small, relatively unobtrusive, and is built for outdoor use. It has an IP65 rating and UV‑resistant housing so it will stand up to rain and sun without looking bulky. The package includes a mounting bracket for the sensor and 2 pieces (1 spare) double‑sided tape for quick installation to your mailbox. The sensor detection combines an infrared sensor and a tilt/motion trigger. I have found that it gives fast, accurate alerts for my parcel letterbox and most likely for most mailbox types. The base station will sound an alarm of your choice from 7 preset alert tones on the base station and you'll get a push notification to your phone the moment the mail flap or mailbox is opened. Range will depend on placement of the SBS50 base station but X‑Sense advertises long‑range transmission suitable for typical suburban setups. The SMA51 sensor (that attaches to your letterbox door/mail flap/parcel door of the letterbox) uses a replaceable CR2 lithium battery and X‑Sense estimates that you'll get about four years of standby life based on approximately 5 triggers per day. Now I find that that excellent and makes for a very low‑maintenance sensor. The X-Sense home security app is fairly straightforward to use and it is from here that you can change alert tones and control the volume (up to 100 dB on the base station). You can share alerts with multiple other users/family members by adding in email addresses, they then get an invitation for which they will need to accept in order to share alerts. You can change device names and clear any alerts from the app or directly from the base station. Just be mindful that this device will not pair directly with your phone you will need the SBS50 base station unless you already have one or buy the kit. My installation is in an all steel bricked in parcel letterbox and the signal has no issue reaching the base station. I am extremely pleased with the operation of the X-Sense Mailbox Alarm so far. In my case I installed the sensor on the inside of the mail flap of the parcel letterbox and it works equally as good when I get mail or when I get a parcel.

## 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 | Alkaline |
| Battery description | Alkaline |
| Best Sellers Rank | #112,838 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 |
| Compatible devices | Smartphone |
| Control Method | App |
| Customer Reviews | 4.3 out of 5 stars 1,479 Reviews |
| EU Spare Part Availability Duration | 4 Years |
| Item Dimensions L x W x H | 9.9L x 2.6W x 2.7H centimeters |
| Item Type Name | Smart Mailbox Alarm |
| Manufacturer | X-SENSE |
| Maximum Range | 50 Meters |
| Mfr Part Number | X-SENSE |
| Model Number | SMA11 |
| 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 | Motion Sensor |
| UPC | 850053675409 |
| Voltage | 3 Volts |
| Wattage | 1000 milliamp_hours |

## Product Details

- **Brand:** X-Sense
- **Colour:** Black
- **Compatible devices:** Smartphone
- **Power source:** Battery Powered
- **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

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

### ⭐⭐⭐⭐⭐ Great for Parcel Letterbox
*by G***Z on 7 May 2026*

The X-Sense mailbox alarm SMA11 which includes the SBS50 base station and the SMA51 sensor works brilliantly. The sensor is small, relatively unobtrusive, and is built for outdoor use. It has an IP65 rating and UV‑resistant housing so it will stand up to rain and sun without looking bulky. The package includes a mounting bracket for the sensor and 2 pieces (1 spare) double‑sided tape for quick installation to your mailbox. The sensor detection combines an infrared sensor and a tilt/motion trigger. I have found that it gives fast, accurate alerts for my parcel letterbox and most likely for most mailbox types. The base station will sound an alarm of your choice from 7 preset alert tones on the base station and you'll get a push notification to your phone the moment the mail flap or mailbox is opened. Range will depend on placement of the SBS50 base station but X‑Sense advertises long‑range transmission suitable for typical suburban setups. The SMA51 sensor (that attaches to your letterbox door/mail flap/parcel door of the letterbox) uses a replaceable CR2 lithium battery and X‑Sense estimates that you'll get about four years of standby life based on approximately 5 triggers per day. Now I find that that excellent and makes for a very low‑maintenance sensor. The X-Sense home security app is fairly straightforward to use and it is from here that you can change alert tones and control the volume (up to 100 dB on the base station). You can share alerts with multiple other users/family members by adding in email addresses, they then get an invitation for which they will need to accept in order to share alerts. You can change device names and clear any alerts from the app or directly from the base station. Just be mindful that this device will not pair directly with your phone you will need the SBS50 base station unless you already have one or buy the kit. My installation is in an all steel bricked in parcel letterbox and the signal has no issue reaching the base station. I am extremely pleased with the operation of the X-Sense Mailbox Alarm so far. In my case I installed the sensor on the inside of the mail flap of the parcel letterbox and it works equally as good when I get mail or when I get a parcel.

### ⭐⭐⭐⭐⭐ Fantastic product at a great price
*by M***C on 24 June 2026*

I bought this to go with our new Adoorn post mounted locking mailbox. Based on another reviewer, I took a chance and mounted the sensor inside the box on the bottom of the pivoting mail drop door. It is completely hidden from sight and works perfectly. I even get alerts on my apple watch.

## 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 United Arab Emirates*
*Store origin: AE*
*Last updated: 2026-07-09*