YBJ YB519F-US-E Alarm System Kit: App alerts and control
This YBJ alarm system is designed for busy households where you need to know what's happening at home. It's perfect for parents who want to monitor when kids arrive from school or for pet owners who need alerts about unusual activity during the day.
While many home security systems focus on deterring intruders, this kit provides a deeper sense of connection. The real-time app alerts let you respond immediately, whether it's checking on a child's safe return or verifying a pet's movement. The motion sensors detect activity so precisely that you receive notifications before you even think to check.
You control everything through the Smart Life app, with no monthly fees. Add up to 99 sensors for complete coverage. The system works with Alexa for voice commands, and the 120-decibel alarm offers audible protection. Installation is simple, requiring no professional help.
Features
- No monthly fees
- DIY installation
- 120-decibel alarm
- Works with Alexa
- Expands to 99 sensors
- App alerts and control
General specs
- Brand: YBJ
- Model: YB519F-US-E
- Seller: Amazon
- ID: B0FGNZL4LH
- Alert Type: Motion, Audio
- Dimensions: 41, 35, 41
- Item Weight: 780
- Connectivity: Wi-Fi
- Power Source: Battery
- : Yes
- Control Method: App, Voice
- Detection Type: Motion, Door/Window
- Indoor/Outdoor: Indoor
- Connection Type: Wireless
- Motion Detection: PIR
- OS Compatibility: Android, iOS
- Smart Home Compatibility: Alexa
- First listed by seller: 1/14/26
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Price History for seller Amazon
Shipping options
United States
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| Brand | YBJ | PGST | PGST | PGST | PGST | tolviviov |
| Model | YB519F-US-E | 103F-US-F | A108F-F-US | PG103-US4G-A | A04-US-G | W2 |
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| Price | $149.99 | $99.99 | $133.99 | $49.99 | $90.99 | $79.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Jan 21, 2026 | Feb 7, 2026 | Feb 7, 2026 | Feb 2, 2026 | Feb 2, 2026 | Feb 7, 2026 |
| Alert Type | Motion, Audio | Motion, Audio | Motion, Audio, Audio & Motion, Entry | Motion, Audio, Audio & Motion, Entry | Motion | Audio & Motion |
| Dimensions | 41, 35, 41 | 102, 102, 191 | 3.1, 3, 7 | |||
| Item Weight | 780 | 227 | 204 | |||
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi, GSM | Wi-Fi, GSM | Wi-Fi, GSM | |
| Power Source | Battery | Battery | Battery | Battery Powered | ||
| Control Method | App, Voice | App, Voice | App, Voice, Remote | App, Voice | App, Voice, Remote | App, Remote, Voice |
| Detection Type | Motion, Door/Window | Motion, Door/Window | Door/Window, Motion | |||
| Indoor/Outdoor | Indoor | Indoor | Indoor | Indoor | ||
| Connection Type | Wireless | Wireless | Wireless | Wireless | Wireless | |
| Smart Home Compatibility | Alexa | Alexa | Alexa, Tuya | Alexa, Tuya | Alexa, Tuya | |