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The main unit becomes a fixed landline via SIM card insertion, and activates auto SMS/call alarm notifications (supports up to 5 recipient numbers, calling/sending SMS in sequence) – this function is free.
It has a high-decibel alarm speaker for clear audio during alarms or calls.

APP Real-Time Alert
Abnormal home alarms trigger real-time notifications even during vacation, enabling quick responses to safeguard property

When object movement is detected in the motion detector’s monitoring area or a door/window is opened, a security alarm is triggered immediately, and a notification is sent to your phone at the same time. Additionally, accessories installed in different locations can be given custom names, allowing you to clearly see the specific location of the anomaly when the alarm is activated.

It supports connections with up to 100+ accessories (such as door contacts and infrared detectors), allowing for full-range security coverage of your residence. This protects your home’s children and personal property, leaving no security blind spots unaddressed.

120dB Alarm
The buzzer, when connected to the main unit, can amplify the main unit’s alarm sound to 120dB, ensuring the alarm is audible no matter where it’s installed.

Convenient Function Remote Control
The wireless remote control enables long-distance settings, such as arming, disarming, and emergency SOS (with a maximum range of 100 meters in open spaces), making it suitable for households with the elderly or children.

NFC arming and disarming
The black NFC arming/disarming key can be hung on a keychain, making it easy to carry and use.

The Home Security System can be connected to the Alexa AI voice assistant, enabling voice-controlled adjustment anytime and anywhere for a peaceful night’s sleep.
【Wi-Fi & GSM/4G Wireless Alarm】: Once the home alarm system hub is installed, simply connect it to your home Wi-Fi or insert a SIM card—this allows all sensors to link to the hub for wireless alarm functionality. You’ll also receive timely alarm alerts via the APP, so you don’t have to worry even when traveling far away.
【Physical Tamper-Proof & Security Lock】: Any unauthorized forced removal attempt will immediately trigger an alarm and activate the hub’s lock protection function. Only by entering the correct password can the alarm and protection mode be deactivated.
【Flexible DIY & Voice Control】: The home security alarm system allows flexible placement of alarm sensors based on your home layout, supporting simultaneous connection and alerting of multiple accessories. Connect the alarm hub to Alexa for real-time voice control, enabling smart and flexible monitoring of your entire home.
【Remote APP control】: The alarm system can be remotely set up for monitoring via the Smart Life or Tuya APP. You can configure alarm modes, notification methods, and synchronize all alarm devices—all from a single smartphone, keeping you fully informed about your home’s status.
【No monthly fees, comprehensive functions】: The PGST home security system can pair with up to 100+ sensors and connect wirelessly to the hub simultaneously. It triggers multi-channel alarms (e.g., hub, APP, call alarms) instantly when unauthorized intrusion is detected—all functions are permanently free of monthly fees.
3 reviews for Security Systems for House 12Pcs WiFi+GSM/4G DIY Kit,Door/Window Home Alarm System Tuya APP Real-Time Alert,Remote ControlMotion Detectors for Home,Apartment,Kids Safety NO Monthly Fees
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Original price was: $109.99.$7.99Current price is: $7.99.

Amazon Customer –
Good value
This Wireless Home Security System WiFi+GSM/4G with Instant App Alerts&Auto Alarm Dial,Door&Window Alarm System,Motion Sensors,Smart Life Tuya Control,NO Monthly Fees,Apartment,Kids Safety was easy to install. It works great for the price point. Good value.
Ariana Mesquita –
Smart Compact Security System
This alarm system can completely cover my house, providing excellent protection for every window and door. Even if there aren’t enough sensors initially, additional sensors can be connected. I like its full touch color screen, which allows for direct and intuitive operation. At the same time, app remote control and intelligent voice control make managing the system more convenient and hassle-free.
Jack Pascoe –
Stable Operation, Stylish Appearance
I like the appearance of this home security system – it’s very simple and elegant. The quality is excellent, providing long-lasting and stable operation. The door sensor alarm and motion detector have been very helpful because I have several cats and dogs that always try to sneak out from time to time. It alerts me promptly every time, and I can control it through a voice assistant.