--- product_id: 625394282 title: "Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51" brand: "x-sense" price: "SAR 123" currency: SAR in_stock: true category: "X Sense" url: https://www.desertcart.com.sa/products/625394282-smart-mailbox-alarm-requires-sbs50-base-station-wireless-long-range store_origin: SA region: Saudi Arabia --- # 2.4 GHz long-range wireless 4-year battery life 100 dB loud alert Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 **Brand:** x-sense **Price:** SAR 123 **Availability:** ✅ In Stock ## Summary > 📬 Stay ahead of your deliveries with smart alerts that keep you connected! ## Quick Answers - **What is this?** Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 by x-sense - **How much does it cost?** SAR 123 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/625394282-smart-mailbox-alarm-requires-sbs50-base-station-wireless-long-range) ## 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 - • **Instant Mail Alerts:** Get real-time push notifications the moment your mail arrives—never miss a delivery again. - • **All-Weather Durability:** IP65 waterproof and UV-resistant design ensures reliable performance rain or shine. - • **Customizable & Scalable:** Connect up to 50 devices to one SBS50 base station and personalize device names for smart home control. - • **Effortless Wireless Setup:** 100% wire-free installation with included double-sided tape—set up in seconds, no tools needed. - • **Seamless Multi-User Sharing:** Share access with family or roommates via the app for collective peace of mind. ## Overview The X-Sense Smart Mailbox Alarm (SMA51) is a sleek, wireless sensor that connects via 2.4 GHz Wi-Fi to the SBS50 base station (sold separately). It delivers instant push notifications to your smartphone with a powerful 100 dB alert, supports multi-user sharing, and boasts a 4-year battery life. Designed for various mailbox types and built to withstand extreme weather with an IP65 rating, it offers easy installation and scalable smart home integration. ## Description desertcart.com: X-Sense Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 : Tools & Home Improvement ## Features - Note: Compatible only with 2.4 GHz Wi-Fi (not 5 GHz). Connects to the X-Sense Home Security App via the SBS50 base station (not included) - Customize Your Home Safety System: Includes 1 mailbox alarm (requires SBS50 base station, not included); each base station can connect up to 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 - 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 (not included) 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 | |---------------|-------| | ASIN | B0CYZKRH49 | | Audible Noise | 100 db | | Battery Description | Lithium | | Best Sellers Rank | #111,065 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #78 in Post-Mount Mailboxes | | Brand | X-Sense | | Built-In Media | 1 Smart Mailbox Alarm (Base Station Required) | | Color | Black | | Compatible Devices | Smartphone | | Control Method | App | | Customer Reviews | 4.3 4.3 out of 5 stars (159) | | Item Dimensions L x W x H | 3.91"L x 1.06"W x 1.02"H | | Item Type Name | Mailbox Alarm | | Manufacturer | X-SENSE | | Mfr Part Number | X-SENSE | | Model Number | SMA51 | | Mounting Type | Wall Mount | | Number of Batteries | 1 CR2 batteries required. (included) | | Number of Items | 1 | | Power Source | Battery Powered | | Sensor Technology | Infrared Sensor | | Size | Only 1 Alarm (Base Station Required) | ## Product Details - **Brand:** X-Sense - **Color:** Black - **Compatible Devices:** Smartphone - **Power Source:** Battery Powered - **Product Dimensions:** 3.91"L x 1.06"W x 1.02"H ## Images ![Smart Mailbox Alarm, Requires SBS50 Base Station, Wireless Long Range Mailbox Alert, Mailbox Sensor for Delivered Mail, SMA51 - Image 1](https://m.media-amazon.com/images/I/71d+6EvSzML.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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.sa/products/625394282-smart-mailbox-alarm-requires-sbs50-base-station-wireless-long-range](https://www.desertcart.com.sa/products/625394282-smart-mailbox-alarm-requires-sbs50-base-station-wireless-long-range) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-09*