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🚨 Stay one step ahead with the loudest, smartest motion alarm in your arsenal!
The Loud 135dB Keypad Motion Sensor Alarm offers a powerful, app-free security solution with a piercing siren, 26-foot detection range, and easy keypad operation. Designed for indoor use in garages, sheds, and travel scenarios, it supports both battery and USB power for up to 2 years standby, ensuring reliable protection wherever you need it.







| ASIN | B0DGQPK5WW |
| Battery Average Life | 2 years |
| Battery Description | 4 x AA akaline Batteries |
| Best Sellers Rank | #44,785 in Electronics ( See Top 100 in Electronics ) #179 in Motion Detectors (Electronics) |
| Brand | Mosaic Alarm |
| Built-In Media | MA20 Motion Sensor Alarm x1;, Manual;, Special USB Power Cord (5ft/1.5m Long) x 1;, fixings; |
| Color | White |
| Customer Reviews | 4.1 out of 5 stars 151 Reviews |
| Item Dimensions D x W x H | 1.4"D x 2.5"W x 6.2"H |
| Item Weight | 3.52 ounces |
| Manufacturer | DongGuan HouJie Mosaic Electronics Factory |
| Maximum Range | 26 Feet |
| Mfr Part Number | MA20 |
| Model Number | MA20 |
| Mounting Type | Wall-Mounted or Free Standing on the Desk |
| Number of Batteries | 4 AA batteries required. |
| Operating Temperature | 23 Degrees Fahrenheit |
| Power Source | 4*AA alkaline Batteries Powered or External USB DC Powered |
| Temperature Range | 5°F-95°F Degrees Fahrenheit |
| Unit Count | 1.0 Count |
S**Q
My Honest, Unsolicited, Review - I recommend this item
I really like this alarm; it’s loud enough to startle someone and surely would deter a would be burglary, which was the purpose of this purchase. Alarm is setup in my garage on the electric outlet closest to the entrance door to my home. The sensor triggers at the far end at the overhead garage door. So, VERY PLEASED with sensor, lighting, loudness and range. The alarm was easy to setup - BUT, if device is unplugged or you have an electric interruption you will have to reset your code and lights (if blinking lights are desired). Suggest you keep the instructions handy. Cost of item was reasonable - Functionally, it serves its purpose. I will review again if anything changes. Suggest you Warranty the item with the manufacturer; they offered a 5 year warranty never asking for my review; they simply asked if I was please with the purchase. I did this because I like the product and would recommend.
M**O
Good
Simple, loud and reliable.
M**E
Nice Motion Detector Alarm
There are lots of ethically challenged people in my neighborhood who are really good at evading the police and cameras and getting into my house somehow so I've been through a lot of motion detectors. This one can't be turned off easily. You have to punch a code that you select and program or unscrew the battery compartment. You can program it to flash different colors when it goes off, which is cool. It's not wireless so it can't be hacked.
D**A
False Advertisement
The alarm won't sound until about 30 - 40 seconds after it detects motion so it really defeats the purpose of this device. No wonder the guy in the video had that weird edit, he had to cut out the 30 - 40 second wait time for the alarm to sound. This product is trash. Do not buy!
G**Y
To mount 5 feet height to get the best results
Works great just what I needed to protect my house.
D**N
Loud keypad motion sensor
Awesome,! Really Loud and really works to frighten intruders! Has Three Loud keypad motion sensor
P**N
Great item, Very Loud!
Quick service. The item is just as described. I liked it to much I order two more!
M**E
May not work in excessive heat
Does not work in a really hot shed in the summer in NJ heat. Stopped working after the summer when it was cooler again, but the seller contacted me and refunded my purchase. I appreciated that, and it seems they stand by their product’s 5 year warranty.
M**F
Perfect travel alarm system
Purchased for travelling and it works perfectly and loud enough. A plug in charger comes with the unit but no batteries.
D**E
Effective and inexpensive alarm option
Easy to install. Recommend the usb install and use the batteries as back up in case of power failure.
G**.
Marchandises de bas gamme mais bien
Assez bien
R**N
fonctionne pas longtemps...
A très bien fonctionné pendant environ 3 mois et ne fonctionne plus. Le problème même si c'est surement garantie 1 an, que faire? Amazon ne t'aidera pas du tout, il te donne une adresse en Chine!!!!! Par contre, je viens d'être remboursé donc numéro 1 pour le suivi et réglage de litige.
R**K
Not worth the money
The siren alarm portion did not work. Disappointed in the product. Returned.
Trustpilot
5 days ago
1 day ago