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Motion Sensor Alarm, Indoor Home Security System Electric Doorbells

  • Based on 527 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Oct 27
Order within 18 hours and 12 minutes
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Set name: 2 alarms & 4 sensors


Features

  • Long-range WirelessThe longest distance the signal from the motion sensor can be transmitted to the receiver is 300 feet, and the motion detector infrared detection distance is about 20 feet. Convenient for you to install in various locations of your house to give your family security.
  • Wide UseThis motion detection alarm system can be used as a doorbell, garage alarm, intruder warning, burglar warning, wildlife warning, child elderly care alarm, etc. It can be installed at the front door, window frame, driveway, walkway, and anywhere in your home where you want an early warning.
  • 3 volume and 38 bellsThe alarm have two alarm signals: LED light and bell. There are 38 ringtones to choose from and three levels of volume, medium, high and low, if you want quiet, you can choose the silent mode, only LED warning, no sudden sound to scare your family.
  • Avoid false alarms - Do not place the detector where the wind will make it active. For optimal performance, try to keep the detection range of the motion detector free of obstructions, such as trees. This motion detector is not waterproof, so please avoid the rain for installation.
  • You can get4pcs motion detector (need AAA battery,not included), 2pcs alarm, 4 sets of mounting screws. Professional after-sales guarantee: from the day you receive the motion sensor alarm, you will enjoy our professional return guarantee.

Description

Infrared detector has a detection angle of 110° and a maximum detection range of 20FT for comprehensive monitoring and peace of mind. Also a doorbell, garage alarm, intruder warning, burglar warning, wildlife warning, child elderly care alarm, etc. So you can be the first to know when visitors and uninvited guests arrive.

Brand: BESTOONE


Color: White


Power Source: Battery Powered


Item Weight: 13.4 ounces


Maximum Range: 2 meters, 20 feet, 20 meters


Power Source: Battery Powered


Maximum Range: 2 meters, 20 feet, 20 meters


Mounting Type: Wall Mount


Temperature Range: 3E+1 °C


Compatible Devices: Security Systems, Smart Home Hubs


Operating Temperature: 30 °C


Item Weight: 13.4 ounces


Color: White


Brand: BESTOONE


Manufacturer: BESTOONE


Number of Items: 1


Number of Packs: 1


UPC: 768494423995


Item Highlight: 4 Motion Detector and 2 Alarm, 300 Foot Wireless Range, 38 Chime Tunes, Mute Mode, LED Indicator, Reset Different Ringtones


Built-In Media: Detector


Item Type Name: FALSE


Model Number: MSA-42


Mfr Part Number: MSA-42


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

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.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Great Product
Set name: 1 alarm & 2 sensors
Does the job great, and because I have 2 separate dingers in my office, this one lights up to let me know which room its for.
Reviewed in the United States on August 24, 2026 by Amanda Traczyk

  • Functional but won’t stop sounding the alarm
Set name: 2 alarms & 4 sensors
Purchase to delivery and price were as expected. Easy to install. Functional but not too practical due to being set off too easily and constantly sounding the alarm. Probably best use would be inside a garage instead of outside in yard or driveway
Reviewed in the United States on October 26, 2024 by Ronald Merker

  • Works great! Simple and easy to setup.
Set name: 1 alarm & 2 sensors
The sensors work great and have a wide vew and are sensitive. The receiver has multiple sounds and tones. You can make it silent also with just the light flashing. It works great and is easy to setup.
Reviewed in the United States on July 27, 2026 by Metrologist

  • One does not work but I still love them
Set name: 2 alarms & 4 sensors
One of them do not work I bought them before and no problem I have the four of these and they are great you can set the sounds for different locations so you know where to look I bought the first set three years ago and they still work great just wanted to cover more of the property
Reviewed in the United States on October 16, 2025 by Brittney Bailey

  • Nice addition to my security system
Set name: 1 alarm & 2 sensors
I use 4 of these around the exterior of my home, including in my Arizona room and pointing directly at my front porch. To cover all entry areas.I set each one with a different tone. So I know how close they're getting and where they are,when they 're outside of my home. It's just one layer of a multi layer security system. And to be honest, I love them. I can set them at different tones, different volumes and if I don't want to listen to them, I can set them so they only flash, and I have them set up in a way that I can see em when i'm watching t v. In this arizona heat, I usually get 223 years out of the motion sensors, and the batteries tend to last for a few months at a time. I just used rechargeable batteries. No problem love emmy' ... show more
Reviewed in the United States on March 27, 2026 by Ron

  • Works most of the time; one too sensitive sounding when the wind/air moves.
Set name: 2 alarms & 4 sensors
Great delivery and works most of the time. Bought the four plus two receivers. Need three batteries for each detectors. Many tunes but most are too long to be of help (don't want to listen to the whole thing). One put under exterior window, won't work inside glass window; rings constantly when wind blows, making it annoying. ... show more
Reviewed in the United States on August 19, 2023 by LC Amazon Customer

  • Product is not even close to anything related to description.
Set name: 1 alarm & 2 sensors
I installed them inside my Shop to detect if anyone comes threw Garage door or man door. Ringer is loud that I can hear it threw out the house. Now for the motion sensors, the range on mine are anything within 8 feet when they work. Placed 1 next to front entrance (regular door) and it activates around 6 feet away. the light comes on but sometimes the ringer doesn't activate. I have walked in and past it within 1 foot of it and nothing. Found the best way to get this 1 to work is to make tons of movement directly in front of it. Had a few times it went off after door was closed and was walking back to house. This room has my large CNC and supplies (metals and wood) the sensor is not facing anything and is in clear sight of the door. Only thing close to it is my dual dust collection system. Originally placed the second 1 exactly 17 feet away from Garage door. I do have tons of larger wood working tools but sensor was above everything and in clear sight of door. I had to actually place a 2x4 from the ceiling down to get it closer to door just to get it working. This one seems to work fine but nothing over 8 feet away. I can come in from door side and it doesn't go off anywhere near the 23 feet in description. The angle of the sensor is not very good I would say maybe a 15 degree arch. I can walk 1 foot on the outside of door and it won't go off. I have just a single garage door in shop to take in and out materials and furniture. I guess I will just have to be happy with my cameras inside my shop. wanted something to alert my if anyone opened the garage door since it's facing a alley way that has lots of traffic and cars. Wouldn't like my thousands of dollars of tools come up missing. I went down to big box store and replaced these and they work perfect. I wouldn't recommend these to anyone unless you have them super close to what you have them facing and not needing a reliable sensor. ... show more
Reviewed in the United States on April 25, 2022 by Dreammachines

  • Nice units. Works well.
Set name: 2 alarms & 4 sensors
Nice units. They work great. Lots of options on sounds and sensor placements. Good range. Thinking of putting a sensor in my mailbox. Hummmm. Good sensitivity as to movement.
Reviewed in the United States on January 15, 2026 by cashley73

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