YBJ

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When purchasing a product, price is the consumer's primary concern. At present, YBJ has 203 products for sale. YBJ products range in price from $22.99 to $159.99, and the average price of all the products is about $84.46.

You can confidently purchase YBJ products from the seller YBJ Direct. The brand holds an average rating of 4.92, testifying to its excellent reputation.

YBJ Best Sellers

Last Updated: Jan 11, 2026

YBJ Alarm System for Home Security, Door Alarm Systems, App Alerts, 15Piece Kit, No Monthly fee, WiFi Alarm, Door Window Motion Sensor, for Home Security and Kids Safety

Home Security Systems

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App Control: Easily control your home security system with the app remote control feature, giving you peace of mind even when you're not at home.

East Installation: DIY installation is simple and requires no professional help or complicated setup. 120-decibel alarm sounds to scare off any potential intruders, giving you peace of mind.

App Alert: Real-time alerts are sent directly to your smartphone via the Smart Life App, keeping you up-to-date on any suspicious activity. It supports expansion of up to 99 sensors and 5 remotes that can be added to a WiFi alarm station.

NO Hidden Cost: No monthly fees, saving you money while keeping you and your family safe. Our door alarm systems utilize WIFI wireless technology that works seamlessly with Alexa to provide you with a hands-free experience.WIFI connectivity for 2.4GHz WiFi networks only, 5GHz WiFi networks are not supported.

What You Get: 1 WIFI Alarm Base Station, 1 keypad, 4 motion sensors, 8 door sensors, 3 remote controls, 1 SOS Button. 1 User manual and friendly customer service.

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YBJ 4G and WiFi Wireless Home Alarm System, DIY Burglar Alarm System for Home Security with App Control, Door Window Sensor, Motion Detector,Work with Google Assistant and Alexa (PG-105-F)

Home Security Systems

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[ DIY Home Security System ]: NO professional needed, No wiring or drilling required. Easy to install in minutes. Only need to fix the alarm host to the wall (screws are included). Then connect the alarm host to power source. The backup battery works for 8 hours, only as an emergency battery. It supports expansion of up to 100 accessories. You can add extra PIR motion detector, door window sensor, remote control, RFID cards and other wireless detectors as you need.

[ Supports GSM and WIFI Dual Network ]: Supports 2G/3G/4G SIM Card and 2.4GHz wifi, but does not support 5GHz wifi. If a SIM card is inserted,the alarm host can work normally even if the wifi is disconnected.

[ Work with "Tuya" and "Smart Life"APP ]: Free mobile app for iPhone and Android phones, so you can control your alarm system from anywhere with your smartphone and get instant notifications of alarms alert in your house or apartment. Compatible with Amazon Alexa and Google Assistant, you can voice control your alarm system.

[ One-click SOS button ]: In an emergency, press the SOS button in time to protect your family's safety. Support multi-channel alarm mode such as APP push/SMS push/Voice monitoring,etc. Supports up to preset 5 groups of phone number with a SIM card inserted. When a sensor is triggered, the alarm host will auto dial the phone number you have saved to notify you at the first time.

[ Package Includes ]: 1* alarm host; 5* PIR motion detectors; 10* door window sensors; 3* remote controls; 3* RFID card; 1* SOS button; 1* siren.

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YBJ Alarm System for Home Security |16-Piece Kit – Home Security System | Expandable | Easy Setup | Mobile App Control | 24/7 Professional Monitoring | Alexa and Google Assistant Compatible

Home Security Systems

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[ No Monthly Fee ]: No hidden costs and subscription fee. Work with Free app ("Tuya" and "Smart Life" app). You can control your alarm system anytime anywhere with your smartphone. Works with Alexa and Google Assistant, you can use voice to control your alarm system. Package includes 1* alarm host, 3* PIR motion detector, 6* door window sensors, 2* remote controls, 2* RFID card, 1* alarm siren and 1* SOS button, all come with the required batteries.

[ Support WIFI and 4G dual network ]: Support 2G/3G/4G sim card (the sim card is not included, You need to purchase it separately from your carrier..) and 2.4GHz wifi network (not work 5G wifi). You can use 4G when the wifi is power off.

[ Timing Arm and Disarm ]: You can set timing arm and disarm by app or keyboard to avoid repeated operation. Also, a delay time can be set to avoid alarms caused by users leaving the site and passing through the deployed area.

[ Anti-theft Protection ]: When someone triggers the system, it will sound a loud alarm to scare off thieves, “Tuya” or "Smart life” app will push information to you, the alarm host will make a call or send a message to the preset phone number.

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YBJ 21-Piece-Kit WiFi Alarm System for Home Security, DIY 4G Smart Home Security System, Wireless Home Alarm System with APP Control, Motion Detector, Door Window Sensor, Siren,Work with Amazon Alexa

Home Security Systems

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[ Easy to Install ]: Easy To Install panel with wireless sensors that can be integrated in short time with automated fast response alarms. Support up to 100 learing/storage/location for remote control, RFID cards and wireless detector as you need; You can control this gsm alarm system Arm/Disarm/Voice Monitoring /Intercom by cellphone anywhere.

[ Wifi+GSM Dual Network ]: This alarm host only works with 2.4GHz wifi (not work 5G wifi) and 2G/3G/4G sim card. you can use GSM when the wifi is power off. // There is no any monthly fee, subscription fee, installation costs, or contracts required. Free mobile app for iPhone and Android phones, so you can control your alarm system from anywhere with your smartphone.

[ Timing Arm and Disarm Function ]: You can set timing arm and disarm by app or keyboard to avoid repeated operation. Also, a delay time can be set to avoid alarms caused by users leaving the site and passing through the deployed area. // Works with Alexa and Google, you can use voice to control your alarm system and intelligent household devices.

[ Anti-theft Protection ]: When someone triggers the system, it will sound a loud alarm to scare off thieves, and “Tuya” or "Smart life” app will push information to you, the alarm host will make a call or send a message to the preset phone number.

[ Package Includes ]: 1* alarm host; 1* PE-513 siren; 4* PIR motion detector; 8* door/window sensor; 3* RFID card; 3* remote control,1*SOS button.

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YBJ 4G and WiFi Wireless Home Alarm System, DIY Burglar Alarm System for Home Security with App Control, Door Window Sensor, Motion Detector,Work with Google Assistant and Alexa (PG-105-C)

Home Security Systems

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[ Package Includes ]: 1* alarm host; 2* PIR motion detectors; 4* door window sensors; 2* remote controls; 2* RFID card; 1* siren.

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YBJ Wireless Home Alarm System, DIY WiFi Alarm System for Home Security with APP Alert, 8-Piece-Kit (Motion Detector, Door Sensors, Remote Control, Siren), Compatible with Alexa and Google Assistant

Home Security Systems

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[ No Any Monthly Fee ]: No any monthly fee, hidden costs and subscription fee. Work with Free app ("Tuya" and "Smart Life" app). You can control your alarm system anytime anywhere with your smartphone. Works with Alexa and Google Assistant, you can use voice to control your alarm system. Package includes 1* alarm host,1* PIR motion detector, 1* door window sensors, 2* remote controls, 2* RFID card and 1* alarm siren, all come with the required batteries.

[ Easy to Install ]: NO professional needed, No wiring or drilling required, only need to fix the alarm host to the wall (screws are included). Then connect the alarm host to power source. Support up to 100 learing/storage/location for remote control, RFID cards and wireless detector as you need.

[ Support WIFI and GSM dual network ]: Support 2G/3G/4G sim card (the sim card is not included, you need to buy it separately.) and 2.4GHz wifi network (not work 5G wifi). You can use GSM when the wifi is power off.

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YBJ 4G and WiFi Wireless Home Alarm System, DIY Burglar Alarm System for Home Security with App Control, Door Window Sensor, Motion Detector,Work with Google Assistant and Alexa (PG-105-A)

Home Security Systems

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[ Package Includes ]: 1* alarm host; 1* PIR motion detectors; 1* door window sensors; 2* remote controls; 2* RFID card; 1* siren.

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YBJ Alarm System for Home Security, Wireless Alarm System with 120dB, Motion Detector, Door Window Sensor, Remote Control, for Shop, Garage, House

Home Security Systems

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[ Easy to Install ]: No WiFi / GSM / APP version. NO professional needed, No wiring or drilling required, only need to fix the alarm siren to the wall (screws are included). Then connect the alarm host to power source. Please install the alarm siren at the heartland of the guarded area to get the best reception from all wireless detectors. Please install the device away from the large metal objects or the high frequency interferenced household appliances; Meantime, to avoid the shiled of ferroconcrete wall and fire-proof door.

[ Easy to Operate ]: This alarm siren uses remote control to arm and disarm. Support up to 20 wireless defense zone and 5 wireless remote controllers. Package includes 1 siren, 1 USB power cable, 1 RIP detector, 2 door/window sensors, 2 remote controls, 2 screws and 1 user manual. Please note: This version can not connect wifi, can not use sim card and can not work with APP.

[ Dual-purpose ]: This alarm siren can wok as a standalone alarm host or the accessories of the alarm host. As the standalone alarm host, it can match multiple wireless detectors and be controlled by remote controllers, make local strobe alarm while the detector be triggered. As the accessories of the alarm host, it can be used as a horn to amplify the alarm sound.

[ One-click for Help ]: When children and seniors at home in emergency,press the SOS button of the remote controller, which will trigger the siren alarm up to 90db to notice neighbors or other families in home so that they will get help in time.

[ On-site Alarm ]: cellular design and all-round sound propagation. When an intruder enters your home or store, their motions will be detected and the alarm siren will loud up to 90db to deter the intruder and scare them away. Perfect for warehouses, shops, factories, residential areas, shopping malls, hotels, and other places.

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YBJ Full Touch Screen Wireless Smart Home alarm system, DIY 4G and WiFi Burglar Alarm System for Home Security with APP Alert, 24-Piece-Kit (Motion Detector, Door Window Sensor, Remote Control, Siren)

Home Security Systems

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[ Easy to install ]: No professional knowledge needed, you can install it in minutes. Just fix the alarm host on the wall(screws are included), plug in the Micro C data cable and power it on. Built in back-up battery for emergency use. Package includes 1* alarm host; 5* motion detectors; 10* door window sensor; 3* remote controls; 3* RFID card; 1* alarm siren and 1* sos button.

[ 4.3 inch touchscreen ]: 4.3 inch IPS capacitive touch screen, simple style, responsive and enhanced user experience. Easy operate for the older and the children. Support setting different theme color.

[ Support dual network and work with Free APPs]: Support 2G, 3G, 4G sim card ( does not support 5G sim card) and 2.4GHz WiFi ( does not support 5G WiFi). If a SIM card is inserted,the alarm system can work normally even if the wifi is disconnected. // Work with "Tuya" and "Smart Life" APP, you can operate anywhere on APPs. Also, when the sensors are triggered, you will get real-time notification via APPs. // Compatible with Alexa and Google Assistant, you can voice control this alarm system.

[ Supports timing arm, disarm and expansion of accessories ]: You can set timing arm and disarm on alarm host or APPs to avoid repeated operation and save your time. Support expansion of up to 200 accessories, such and motion detector, door window sensor and other accessories which can work with "Tuya" and "Smart Life" APP.

[ Secure your home ]: This alarm system is the best gadget to stop thieves before breaking. With inserting a sim card, you can preset up to 5 groups of phone number. When the sensors are triggered, the alarm system will issue more than 120db sound to scare off the intruders and will auto dial your phone number and send you a alarm message. If the phone number is busy, it will auto the next phone number, so that you will not miss anything important.

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YBJ Wireless Door Window Sensor Door Magnetic Detector for Home Security Alarm System Entrance Alarm Anti-Theft,Intrusion Prevention,for Home Warehouse Garage Business Store Office (3pcs)

Home Security Systems

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[Easy to Install ] Just peel and paste ( battery and double-sided stickers included). White polishing body, high quality sensitive button,It will be a perfect choice for your family, office, apartment, shop.etc.

[Compatibility] Works well with 433MHz home alarm system,compatible models such as: PG103, PG105, PG106, PG107,PG108,PG109, PG500.etc. (Please Notice: this door window sensor cannot be used alone.)

[Real-time Alarm] When the door/window is opened, It will send an alarm signal.Emission Distance from Host: About 120m (open space/no obstacles).

[Support 433MHz, 1527 Code Based Alarm Host] ：This door sensor could only work and code with 433MHz, 1527 code based alarm host. We introduced it for our wireless alarm system, please check the code carefully before using other alarm host.

[Pairing] Tap "Parts" at Alarm Panel "Main Menu". Then tap "Detector", tap "+Add", choose “Door Alarm” at "Name", align the touch sensor together, then separate the 2 parts of the door sensors to activate the sensors now. (Please Note, this door sensor can only pairs on alarm panel, not support pairing on APP.)

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YBJ Wireless Alarm System for Home Security,DIY 4G Smart Home Alarm System with APP Alert, 24-Piece-Kit (Motion Detector,Door Window Sensor,Siren,Remote Control),Work with Alexa and Google Assistant

Home Security Systems

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[ No Any Monthly Fee ]: No any monthly fee, hidden costs and subscription fee. Work with Free app ("Tuya" and "Smart Life" app). You can control your alarm system anytime anywhere with your smartphone. Works with Alexa and Google Assistant, you can use voice to control your alarm system. Package includes 1* alarm host, 5* PIR motion detector, 10* door window sensors, 3* remote controls, 3* RFID card, 1* alarm siren and 1* SOS button, all come with the required batteries.

[ Easy to Install ]: NO professional needed, No wiring or drilling required, only need to fix the alarm host to the wall (screws are included). Then connect the alarm host to power source. Support expansion of up to 100 accessories. You can add extra PIR motion detector, door window sensor, remote control, RFID cards and other wireless detectors as you need.

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YBJ WiFi Alarm System for Home Security,DIY 4G Smart Home Security System, Wireless Home Alarm System with APP Control, Motion Detector, Door Window Sensor,Siren,Work with Amazon Alexa

Home Security Systems

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YBJ WiFi Alarm System for Home Security, DIY 4G Smart Home Security System, Wireless Home Alarm System with APP Control, Motion Detector, Door Window Sensor, Siren,Work with Amazon Alexa

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

Home Security Systems

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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.

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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.

Home Security Systems

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[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.

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YBJ Solar Sound & Light Alarm Siren Outside Weatherproof Waterproof Alarm System with Motion Detector, Door Window Sensor, Remote Control

Security Horns & Sirens

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[ IP65 Waterproof ]: This outdoor alarm siren has fashionable appearance and supports IP65 waterproof, suitable for both indoor and outdoor use which can withstand harsh environment.

[ Solar charging ]: Designed with 45°bevelled solar panel to absorb solar energy efficiently. The outdoor alarm built-in rechargeable high-capacity lithium battery. It is powered by a battery and will be charged by the solar panel, so you do not need to replace the battery.

[ Dual Purpose ]: It can pair accessories and used as alarm host. Also it can be used an alarm siren of YBJ home alarm system. As an accessories, it can be paired with YBJ home alarm system, then you can receive real-time APP notification when the sensors are triggered.

[ Wide Application ]: Suitable for the safety of villas, communities, shops, factories, schools, banks and other places where requiring security alarm.

[ Package Includes ]: 1* outdoor alarm, 1* motion detector; 2* door window sensor; 2* remote control.

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YBJ FAQs

Is YBJ Legit?

Yes, YBJ is a legitmate brand on Amazon. After conducting a comprehensive analysis of 13 customer reviews for YBJ products on Amazon, we have determined its average rating. With a strong performance and good quality, YBJ has received an average rating of 4.92 from numerous buyers, indicating that YBJ are trustworthy and live up to their claims. Therefore, it is safe to make purchases from YBJ on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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