YBJ WiFi Home Security Alarm System, DIY 4G Smart Home Security System, Compatible with Wireless 433MHz Motion detectors, Door/Window sensors, and Sirens, Supports Amazon Alexa.
YBJ WiFi Home Security Alarm System, DIY 4G Smart Home Security System, Compatible with Wireless 433MHz Motion detectors, Door/Window sensors, and Sirens, Supports Amazon Alexa.
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30-Day Hassle-Free Returns
30-Day Hassle-Free Returns
Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.
✔ Easy return process
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Fast U.S. Shipping
We ship within the United States only — no international delays.
✔ Processing time: 1–2 business days
✔ Delivery time: 3–7 business days
✔ Real-time tracking available
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About This
- [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.
- [Scheduled Arming/Disarming]: Set timed operations via the app or keypad to avoid repetitive manual actions. Also configurable delay times prevent false alarms triggered by people leaving the premises through armed zones.
Overview
- Brand : YBJ
- Power Source : Battery Powered
- Compatible Devices : Wireless 433, smartphones, Smart Life app, Tuya app, Google, Alexa
- Item dimensions L x W x H : 7.3 x 0.6 x 4.9 inches
- Connectivity Technology : Wireless
WE MAKE SMART LIVING SIMPLE.
OUR TEAM HELPS SECURE YOUR HOME.
SmartHomeValueHub helps homeowners create safer, smarter, and more convenient living spaces with trusted smart home solutions built for everyday life.
From smart security cameras and smart locks to video doorbells, thermostats, lighting, and home automation essentials — we focus on products that improve real comfort, safety, and efficiency.
Our goal is simple: better protection, lower energy costs, and smarter daily living for every home.
Why Homeowners Trust SmartHomeValueHub
✔ Easy Setup
✔ Matter Compatible
✔ Smart Security
✔ Energy Saving
50K
HaSMART DEVICES INSTALLEDppy Clients
15+
YEARS OF SMART HOME EXPERTISE
98%
CUSTOMER SATISFACTION RATE
365
RELIABLE SUPPORT YEAR-ROUND
Smarter Security. Lower Bills. Easier Living.
SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
Smart Door Locks
Smart Thermostats
Smart Plugs
Video Doorbells
Yes.
Smart thermostats and smart plugs help reduce wasted energy by automating heating, cooling, and power usage.
It depends on your ecosystem.
Alexa → widest compatibility
Google Home → strong for Android users
Apple HomeKit → best privacy
Home Assistant → advanced control
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