--- product_id: 684789317 title: "X-Sense Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11" brand: "x-sense" price: "S$77" currency: SGD in_stock: true category: "X Sense" url: https://www.desertcart.sg/products/684789317-x-sense-smart-mailbox-alarm-wireless-long-distance-mailbox-alert store_origin: SG region: Singapore --- # 50m long-range wireless 4-year battery life IP65 waterproof durability X-Sense Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11 **Brand:** x-sense **Price:** S$77 **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 Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11 by x-sense - **How much does it cost?** S$77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/684789317-x-sense-smart-mailbox-alarm-wireless-long-distance-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 - • **Ultra-Low Maintenance:** Replaceable battery lasts up to 4 years with minimal triggers—set it and forget it. - • **Weatherproof & UV-Resistant:** Built to withstand rain, sun, and extreme temperatures with IP65 rating and ASA shell protection. - • **Effortless Multi-User Sharing:** Share alerts seamlessly with family or colleagues via the X-Sense app for collective peace of mind. - • **Instant Mail Alerts, Anywhere:** Get real-time push notifications the moment your mail arrives—never miss a delivery again. - • **Robust Long-Range Connectivity:** Reliable 2.4 GHz Wi-Fi connection with up to 50 meters range, perfect for suburban setups. ## Overview The X-Sense Smart Mailbox Alarm SMA11 combines long-range wireless technology with a durable, weatherproof design to deliver instant mail notifications via the X-Sense app. Featuring a 4-year battery life, multi-user sharing, and customizable alert tones up to 100 dB, it ensures you never miss important mail or parcels. Easy to install and compatible with various mailbox types, this smart sensor is the ultimate low-maintenance security upgrade for your home. ## Description Mailbox Alert, X-Sense Smart Mailbox Alarm, Wireless Long Distance Mailbox Alert, Mailbox Sensor with SBS50 Base Station for Worried Mail, SMA11 ## 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 | | ASIN | B0CPLQ16K7 | | Audible Noise | 100 Decibels | | Batteries | 1 CR2 batteries required. (included) | | Battery Description | Alkaline | | Best Sellers Rank | #128,647 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 | | Compatible Devices | Smartphone | | Control Method | App | | Customer Reviews | 4.3 4.3 out of 5 stars (1,550) | | Customer reviews | 4.3 4.3 out of 5 stars (1,550) | | Date First Available | 20 December 2024 | | 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 | | Item model number | SMA11 | | Manufacturer | X-SENSE | | Manufacturer | X-SENSE | | Maximum Range | 50 Meters | | Mfr Part Number | X-SENSE | | Model Name | SMA11 | | Model Number | SMA11 | | Mounting Type | Wall Mount | | Number of Batteries | 1 CR2 batteries required. (included) | | Number of Items | 1 | | Power Source | Battery Powered | | Product Dimensions | 9.93 x 2.59 x 2.69 cm; 210 g | | 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 ![X-Sense 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) ## Available Options This product comes in different **Style** options. ## 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 --- ## 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.sg/products/684789317-x-sense-smart-mailbox-alarm-wireless-long-distance-mailbox-alert](https://www.desertcart.sg/products/684789317-x-sense-smart-mailbox-alarm-wireless-long-distance-mailbox-alert) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-11-01*