---
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: "€ 66.78"
currency: EUR
in_stock: true
reviews_count: 9
category: "X Sense"
url: https://www.desertcart.gr/products/599552438-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert
store_origin: GR
region: Greece
---

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

**Brand:** x-sense
**Price:** € 66.78
**Availability:** ✅ In Stock

## Summary

> 📬 Stay ahead of your deliveries with smart alerts that keep you connected and in control!

## 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?** € 66.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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

- • **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 design and UV-resistant shell ensure reliable performance rain or shine.
- • **Seamless Multi-User Sharing:** Share access effortlessly with family or colleagues via the X-Sense app for total mailbox visibility.
- • **Expandable Smart Security Hub:** Connect up to 50 X-Sense devices on one base station for a fully integrated home and outdoor security system.
- • **Instant Mail Alerts, Anywhere:** Get real-time push notifications the moment your mail arrives—never miss a delivery again.

## Overview

The X-Sense Smart Mailbox Alarm is a wireless, long-range mailbox sensor that delivers instant app notifications via a 2.4 GHz Wi-Fi connection. Featuring a 50-meter transmission range, 100 dB adjustable alarm, and a 4-year battery life, it’s designed for easy, wire-free installation on various mailbox types. Built tough with an IP65 waterproof rating and UV-resistant materials, it ensures reliable operation in all weather conditions. The included SBS50 base station supports up to 50 devices, enabling a customizable and expandable home security ecosystem.

## 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: 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!!
Review: Mailbox Alarm, Security Camera and Hygrometer All Work Great - 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

## 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 |
| Batteries | 1 CR2 batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Battery Description | Lithium |
| Best Sellers Rank | #14,030 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Post-Mount Mailboxes |
| Control Method | App |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,328) |
| Date First Available | December 11, 2023 |
| Description Pile | Lithium |
| Included Components | 1 X Smart Mailbox Alarm, 1 X SBS50 Base Station, 1 X User Manual |
| Installation Method | Pre-paste |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item model number | SMA11 |
| Manufacturer | X-SENSE |
| Maximum Range | 50 Meters |
| Mounting Type | Protruding |
| Noise Level | 100 Decibels |
| Number of Batteries | 1 CR2 batteries required. (included) |
| Part Number | X-SENSE |
| Product Dimensions | 3.91 x 1.06 x 1.02 inches |
| Sensor Technology | Infrared Sensor |
| Style | Alarm |
| UPC | 850053675409 |
| Usage | Outside; Professional |
| 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)

## Customer Reviews

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

### ⭐⭐⭐⭐⭐ Works great, good value for the price, and easy to install!
*by W***Y on November 18, 2025*

The X-Sense Smart Mailbox Alarm works great! The quality and durability of the Base and Mailbox is good. The only area for improvement is to send better double-sided adhesive strips. For Ring users, the X-Sense Smart Mailbox Alarm WORKS FAR BETTER than Amazon’s Ring Mailbox Sensor which requires the additional purchase of an Amazon Bridge and the use of Amazon Sidewalk. The X-Sense Smart Mailbox Alarm works seamlessly with your home Wi-Fi. BOTH the X-Sense Smart Mailbox Alarm with the X-Sense Base (which is included) currently costs LESS THAN the purchase of Amazon’s Ring Mailbox Sensor and is a much better value! The X-Sense app is easy to use, the choice of ringtones for the X-Sense Base are very nice. The X-Sense app sends realtime notifications to your mobile phone when your mailbox is opened and closed; plus the X-Sense Base pleasantly chimes simultaneously if you choose that setup! The installation took less 10 minutes to install! Well worth the price!

## 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 Greece*
*Store origin: GR*
*Last updated: 2026-02-23*