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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Thursday, Nov 5
Recently Viewed
At a glance
- Condition
- New
- Model
- MA100T
- Color
- White
- Power Source
- Battery Powered
- Control Method
- Touch
- Mounting Type
- Tabletop Mount
- Maximum Range
- 600 feet
- Works with
- Receiver
Features 5
- Upgraded Mailbox Chime Alert: Our newly designed mailbox sensor allows you and your family to avoid frequent trips to check mail during cold winter nights, reducing inconvenience and risk. saving time and making life more convenient. Additionally, mailbox alert anti-theft feature protects your mail securely
- Enhanced Coverage and Expandable Pairing: Mail alert receivers can operate up to 600 feet in an unobstructed area, ensuring you never miss a mailbox alert. It also supports pairing with multiple transmitters, suitable for homes and offices with multiple mailing points
- Instant Alerts and LEDMusic Notification: When the mailbox Notification system is opened, the receiver immediately emits a sound and lights up a blue LED, which continues to flash until you press the stop button. You can also choose from three different mail alert tones to suit your personal preference for a more customized experience
- Easy Installation: The mailbox alarm is battery-powered and wire-free for easy installation. It is compatible with various mailbox types including standard, wall-mounted, and slot mailboxes, allowing you to easily adjust settings based on your mailbox type
- Quality Assurance and Professional Service: Mailbox sensor from the date of purchase, you will enjoy a 30-day no-reason service and lifelong enthusiastic after-sales support.
Description
Our mailbox receivers have 3 mailbox tones and an LED light that is always on, so you won't miss incoming mail. Mailbox reminder can reach 600ft unobstructed distance signal transmission Pay attention to the direction of mailbox alarm installation, installed in the mailbox cover can be reversed > 45 °, can be triggered Mailbox alarms can alert you when your mail is delivered or alert you when your mail is stolen
Specs 15
| Color | White |
|---|---|
| Brand | BITIWEND |
| Power Source | Battery Powered |
| Control Method | Touch |
| Mounting Type | Tabletop Mount |
| Maximum Range | 600 feet |
| Sensor Technology | Wireless Sensor |
| Item Highlight | Mailbox Chime Notification System 600 ft Long Range LED Light Flashing and Sound Reminderser Station for Delivered Mail |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Size | 1 Mailbox Alarm 1 Chime |
| Manufacturer | BITIWEND |
| Number of Items | 1 |
| Built-In Media | mailbox chime |
| Model Number | MA100T |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Mailbox Alarm, wireless 🛜 long range 📪
Style: 1 Mailbox Alarm 1 Chime
This is a very good purchase. The instructions were easy to understand, we had no problem getting connectivity and the range worked out perfectly! I love that the sound can be controlled with your choice of sounds. I don’t know about the battery life but they are easily replaced! 😊
Reviewed in the United States on September 20, 2026 by Elaine
Alarm plays unknown sound (not mailbox open notification) continually
Style: 1 Mailbox Alarm 1 Chime
My initial delight quickly turned to disappointment. The set up and initial check of the device was completed without any problems and the Mail box alarm function worked perfectly. The problem is that later that evening, the receiver started playing a melody continually (the same melody played when the volume/pairing button is pressed, different that the "You have mail" and a simple chime when the box is opened). After repeated attempts to shut the "notification"(?) off, I moved the receiver to a different outlet about 20 feet away but the melody almost immediately restarted. I unplugged the receiver overnight and the next day, tried resetting the receiver and then repairing with the transmitter. Initially all seemed well, it did announce next time the mailbox was opened but then later, the continual playing of the melody started again. The user manual trouble shooting section only mentions problems if the mailbox opening notification is failing in some way (It's not). I don't know if I can return the unit at this point, having fully installed it, but it's unusable as it is.
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Reviewed in the United States on August 12, 2026 by Lonely Neuron
Great mailbox alert
Style: 1 Mailbox Alarm 1 Chime
This mailbox alert is great. It is easy to set up. You plug it in and there is a button on the side that you can select the sounds. The transmitter that you put in the mailbox is easy to set up. You pull the tab to activate the battery and it pairs immediately. I like that you dont need wifi. After attaching it to the mailbox door it works immediately. As soon as the door is opened you get an alert. It says you got mail. It has a blinking blue light until you push the reset button. My husband likes how easy it is to use and now we know when the mail has come. This is a great buy if you worry about mail thieves.
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Reviewed in the United States on May 22, 2026 by Angel Bird
Inclement weather effects operation. Inconsistent operation.
Style: 1 Mailbox Alarm 1 Chime
1) This item performs well under normal (clear) weather conditions. Rain seems to limit its range. our mailbox is approximately 450' from the house. Well within the stated range. Very pleased with the ease of setup. 2) Follow-up to initial review...Initial unit exchanged due to erratic operation. Second unit performed well for a couple of weeks but then range became an issue. Replaced battery. This worked for a while but has now started to be intermittent. Will be returning unit.
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Reviewed in the United States on February 17, 2026 by James P.
Works Great!
Style: 1 Mailbox Alarm 1 Chime
It was difficult to see the mailbox delivery flag since the P.O. now is delivering here at 7:30 pm, too dark. I don't even look at the mailbox anymore, just check the receiver for the flashing light. The light stays on until I turn it off. There are a large selection of alert sound but no idea how to find them except trial and error because nothing listed in the instructions or on the sale page.
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Reviewed in the United States on January 29, 2026 by RJS
Very sensitive, to the point of annoying
Style: 1 Mailbox Alarm 1 Chime
It works....sorta. The sensor is VERY sensitive, and it doesn't take much to set it off. On windy days, when someone opens our office door too enthusiastically, or when a large truck drives by, the sensor is triggered and sets off the alarm. We are using this alarm on the inside door of our payment dropbox, which is securely affixed to a brick wall in a small 5x5-ft lobby area, which is up about 8 concrete steps from the sidewalk, which runs parallel to Main St. So large trucks drive by somewhat often, and sometimes the wind will rattle the door a bit. Some days, the sensor only trips once. Other days, it goes off 5+ times. Every day since installing it, we've had to reset the blinking light in the morning, and only once has there actually been something in the dropbox. It feels a little like the boy who cried wolf. I couldn't find any instructions for troubleshooting a too-sensitive alarm, so it appears we're without luck. We do all get a kick out of the cheery "you've got some maaaail" chime that plays, and it does work when the dropbox door is opened.... it just also works when the sensor vibrates when a truck drives by, and that's getting old.
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Reviewed in the United States on February 24, 2026 by MandySue
Works well with a 500 foot distance
Style: 1 Mailbox Alarm 1 Chime
Works well. Mailbox is at least 500 feet from the front of the house. Reception unit is plugged into the external wall and does have a direct line of sight (through the wall) to the mailbox. Note we are uphill and there are trees, but none that directly interfere. The Up arrows are hard to see on the motion unit and when mounting should be aimed to the top of the mailbox when the door is shut. It only requires the mailbox door to tip 45 degrees, not fully open, to trigger the indoor alarm. The alarm comes with a default to silent, so you need to choose one of the three sounds if you want an audible notice and not just the flashing blue light. Very easy to set up. I would buy this again and highly recommend it.
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Reviewed in the United States on April 9, 2026 by Deb
do not buy this
Style: 1 Mailbox Alarm 1 Chime
does not work and then they sent this: impossible to take a video while using the app. Dear Mike Chow, Hello, thank you for your letter. We sincerely apologize for the inconvenience. We understand that the inability to connect despite the device being located will affect your normal user experience. To further assist you in investigating this issue, please provide the following information: 1. Order invoice or order screenshot; 2. Your detailed shipping address, including recipient's name, street address, city, state, zip code, country, and phone number; 3. A video demonstrating the complete process of connecting your SMA51 smart mailbox alarm, including app prompts, device indicator light status, and connection failure messages. After receiving the above information, we will forward the situation to our engineers for further analysis and assist you as soon as possible. Thank you for your understanding and cooperation. Sincerely, Kris Customer Service Web: x-sense.com
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Reviewed in the United States on May 20, 2026 by Robert Weinstein