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YBJ

YBJ12-Piece Alarm System — Wireless Smart Home Security System | Supports 99+ Wireless Zones | Easy Installation | Mobile App Control | Compatible with Surveillance Systems | Alexa Compatible

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Apr 15
Order within 7 hours and 44 minutes
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Style: Smart-12Piece


Features

  • Easy Installation No professionals required. No wiring or drilling needed. Simply mount the main unit on the wall (screws included) and connect to power. Supports expansion to 100 learning/storage/location units. Flexibly configure remote controls, RFID cards, and wireless detectors.
  • Mobile Remote Control View and control your security system anytime via smartphone (requires SIM card or WiFi). Arm/disarm, voice monitoring, and intercom functions available.
  • Intrusion Protection When triggered, accessories instantly send wireless signals to activate the alarm system. It emits a high-decibel alert to deter intruders while simultaneously calling or texting preset contacts.
  • Built-in Battery The system remains fully operational even if wires are cut or power is interrupted. It continues to effectively deter intrusions during power outages.
  • Dual-Mode Network Support Compatible with 2G/3G/4G SIM cards (purchased separately) and 2.4GHz Wi-Fi networks (does not support 5G). Automatically switches to GSM communication when Wi-Fi power is lost.

Brand: YBJ


Color: white


Power Source: Battery Powered


Compatible Devices: Wireless 433, smartphones, Smart Life app, Tuya app, Google, Alexa


Item dimensions L x W x H: 5.12 x 0.79 x 3.94 inches


Power Source: Battery Powered


Compatible Devices: Wireless 433, smartphones, Smart Life app, Tuya app, Google, Alexa


Connectivity Technology: Wireless


Alert Type: Sensing


Voltage: 5 Volts


Control Method: App


Maximum Range: 100 Feet


Battery Average Life: 8 Hours


Audible Noise: 120 Decibels


Sensor Technology: PIR Motion Detection


Connector Type: USB Type A


Smart Home Compatibility: Smart Home Compatible


Installation Method: Wireless


Antenna Location: Home, warehouse, company, office building, shopping mall


Assembly Instructions Description: Mount door/window sensors on doors/windows, place motion detector in desired location.


Brand: YBJ


Built-In Media: Alarm system, motion detector, door/window sensor, wireless remote control, high-decibel siren


Model Number: YBJPG-500F-US


Manufacturer: YBJ


Item Dimensions: 5.12 x 0.79 x 3.94 inches


Item Weight: 1.72 Pounds


Unit Count: 12.0 Count


Color: white


Battery Cell Type: Lithium Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Calidad
Style: 105-F-24Piece
Excelente
Reviewed in the United States on February 15, 2026 by FAUSTINO PAGLIOCCA
    • Alarma recomendada.
Style: 108-D-16Piece
Producto igual al ofertado. Fácil instalar. Fácil parametrizacion.
Reviewed in the United States on January 31, 2026 by Edward Orlando Martinez Bahamon
    • Easy DIY alarm
Style: 108-D-16Piece
It's been almost a month now and it work really good. Easy to install (the manual is not all that good, but there are plenty of videos around to figure out how to install and configure all). And you can check all from the app too.
Reviewed in the United States on February 13, 2026 by Martin
    • good
Style: 108-D-16Piece
Review Image by laughing
Review Image by laughing
It's very loud, supports multiple languages, and comes with 6 alarms and 3 infrared sensors, offering a variety of functions.
Reviewed in the United States on November 21, 2025 by laughing
    • “Impressive Security with Easy Setup!”
Style: Smart-12Piece
“Impressive Security with Easy Setup!” – Wireless Smart Home Security System This system is incredibly user-friendly. Setup was fast, the mobile app is intuitive, and the ability to support 99+ wireless zones makes it very expandable. Notifications are reliable, and Alexa integration works smoothly. Great for anyone wanting strong security without complicated wiring. Excellent value for peace of mind. 🔐📱 ... show more
Reviewed in the United States on December 17, 2025 by Freedom
    • Doesn’t work
Style: 105-F-24Piece
It has a nice appearance but doesn’t work, the alarm turns on on its own even when not armed… Don’t loose your money like I did!
Reviewed in the United States on November 17, 2024 by Bka
    • They are decent
Style: 68-1Piece
Review Image by Bobbi Goodwill
Review Image by Bobbi Goodwill
Review Image by Bobbi Goodwill
Review Image by Bobbi Goodwill
Review Image by Bobbi Goodwill
I know that the price point is low, but I did have higher expectations for these sensors. The packaging was terrible ~ they were putting in a very thin little box which was smashed upon arrival, and there were no directions or manual included at all. Luckily, I found some instructions on YouTube and they weren’t that hard to install at all. They seem to be durable, they function as they should and the sound is actually impressive, it’s clear and loud. I live in an apartment and these were perfect for my glass sliding door and two bedroom windows so they do offer a piece of mind. Maybe next time I’ll buy a bigger kit and see how the entire system works together. ... show more
Reviewed in the United States on March 9, 2026 by Bobbi Goodwill
    • Tough programming
Style: 108-D-16Piece
Nice packaging fast shipping looks great but the instructions are not only a little vague but very hard to follow on seeing your phone up as every phone is a Lil different, getting it programmed not to go off in home mode took 2 days. Not for beginners, you need to be competent on following directions to the letter and even then it is not always what they say it is on outcome, alarm went off a lot trying to figure it out and it is loud. Would recommend for beginner systems ... show more
Reviewed in the United States on December 27, 2025 by Craig strasburg

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