---
product_id: 728536410
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: "₩217"
currency: KRW
in_stock: false
url: https://www.desertcart.kr/products/728536410-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert
store_origin: KR
region: South Korea
---

# 2.4 GHz 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:** ₩217
**Availability:** ❌ Out of Stock

## Summary

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

## 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?** ₩217 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/728536410-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

- • **Long-Lasting Power:** Replaceable lithium battery lasts up to 4 years on average use—set it and forget it.
- • **All-Weather Reliability:** Built to withstand rain, sun, and extreme temperatures with IP65 waterproof rating and UV-resistant shell.
- • **Effortless Wireless Setup:** 100% wire-free design with quick installation using included double-sided tape—set up in minutes.
- • **Seamless Multi-User Sharing:** Share mailbox access with family or colleagues effortlessly via the app for ultimate convenience.
- • **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 sleek, wireless sensor that sends instant push notifications via a 2.4 GHz connection when mail is delivered. Compatible with multiple mailbox types, it features a 4-year battery life, IP65 waterproof rating, and easy app-based multi-user sharing. Designed for hassle-free installation and reliable all-weather performance, it ensures you never miss important mail again.

## Description

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

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| UPC | 850053675409 |
| Manufacturer | X-SENSE |
| Part Number | X-SENSE |
| Product Dimensions | 9.93 x 2.69 x 2.59 cm; 215 g |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | SMA11 |
| Wattage | 1000 milliamp_hours |
| Item Package Quantity | 1 |
| Included Components | 1 X SBS50 Base Station, 1 X User Manual, ‎‎1 X Smart Mailbox Alarm SMA51 |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Item Weight | 215 g |

## Product Details

- **Colour:** Black
- **Brand:** X-Sense
- **Number of batteries:** 1 CR2 batteries required. (included)
- **Voltage:** 3 Volts
- **Maximum range:** 50 Metres

## 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)

## 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
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**Shop now:** [https://www.desertcart.kr/products/728536410-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert](https://www.desertcart.kr/products/728536410-x-sense-smart-mailbox-alarm-wireless-long-range-mailbox-alert)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-02*