---
product_id: 745404385
title: "X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51"
brand: "x-sense"
price: "€ 1.12"
currency: EUR
in_stock: false
url: https://www.desertcart.es/products/745404385-x-sense-smart-mailbox-alarm-sbs50-base-station-required-long
store_origin: ES
region: Spain
---

# 2.4GHz long-range wireless 4-year battery life IP65 waterproof durability X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51

**Brand:** x-sense
**Price:** € 1.12
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 by x-sense
- **How much does it cost?** € 1.12 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/745404385-x-sense-smart-mailbox-alarm-sbs50-base-station-required-long)

## 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

- • **Seamless Multi-User Sharing:** Share access with family or roommates via app for total mailbox transparency.
- • **Instant Mail Alerts, Anywhere:** Get notified the moment your mail arrives—never miss a delivery again.
- • **Robust All-Weather Performance:** Built to withstand rain, sun, and extreme temps from -10°C to 60°C.
- • **Expandable Smart Home Integration:** Connect up to 50 devices with SBS50 base station for full home coverage.
- • **Effortless Installation & Maintenance:** Cord-free design with easy double-sided tape setup and replaceable battery.

## Overview

The X-Sense SMA51 Smart Mailbox Alarm pairs with the SBS50 base station to deliver instant, long-range wireless notifications via a 2.4GHz network. Designed for diverse mailbox types, it features a 4-year battery life, IP65 waterproof rating, and easy app-controlled multi-user sharing. Its compact, cord-free design ensures quick installation and reliable performance in all weather conditions.

## Description

X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51

## Features

- Requires SBS50 Base Station - The SMA51 is an accessory for use with the SMA11 smart mailbox kit and requires pairing with the SBS50 base station; SBS50 base station can connect up to 50 mailbox alarms or other SBS50 compatible devices, ensuring complete home coverage
- AUTOMATIC REALTERS & MULTI USER SHARING - The moment your mail arrives, you will receive an instant app alert; Manage various functions from your phone, such as sharing devices, mail reminder, one-button mute, up to 100dB volume adjustment and ringtone selection
- LONG DISTANCE TRANSMISSION, ACCURATE DETECTION - With wide coverage, the smart mailbox alarm maintains a strong and reliable connection to the base station via a 2.4GHz Wi-Fi network, and quickly send notifications to your phone
- Compatibility with Various Mailbox Types - This mailbox alarm is designed with a sleek, compact profile; compatible with curb/pole mount, wall mount, slot type and cluster type mailboxes; Not suitable for mailing slots without caps
- Extra-long standby mode, easy installation: replaceable battery offers a long 4-year life based on 5 daily triggers; Alarm is 100% cord-free and easy to install with the included double-sided tape; Following the instructions on the app, 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 -10-60 C (-10-60 C), this wireless mailbox alarm works reliably even in extreme weather; ASA housing and silicone seal prevent fading caused by sunlight and UV rays

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | Lithium |
| Number of Batteries | 1 CR2 batteries required. (included) |
| Voltage | 3 Volts |
| Control Method | App |
| Manufacturer | X-SENSE |
| Item model number | SMA51 |
| Product Dimensions | 4.2 x 3.2 x 10.7 cm; 59 g |
| ASIN | B0CYZKRH49 |

## Product Details

- **Colour:** Black
- **Brand:** X-Sense
- **Power Source:** Battery Powered
- **Compatible Devices:** Smartphone
- **Product Dimensions:** 9.9L x 2.7W x 2.6H Centimeters

## Images

![X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 1](https://m.media-amazon.com/images/I/71d+6EvSzML.jpg)
![X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 2](https://m.media-amazon.com/images/I/617W2EqMrnL.jpg)
![X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 3](https://m.media-amazon.com/images/I/61BzIWlfsLL.jpg)
![X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 4](https://m.media-amazon.com/images/I/61ARKm9QQxL.jpg)
![X-Sense Smart Mailbox Alarm, SBS50 Base Station Required, Long Range Wireless Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 5](https://m.media-amazon.com/images/I/61hPCn-zjxL.jpg)

## Frequently Bought Together

- X-Sense Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51
- X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Delivered Mail, SMA11
- 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 Spain*
*Store origin: ES*
*Last updated: 2026-02-26*