Alarm Sensor

Upgrade Your Home Security with Modern Alarm Sensors

Alarm sensors are currently trending on AliExpress due to the rapid expansion of affordable DIY smart home ecosystems. Modern options now integrate seamlessly with Tuya, Zigbee, and Wi-Fi platforms, offering professional-grade sensitivity at a fraction of the traditional cost. From door contacts to sophisticated motion detectors, the price-to-performance ratio has never been better for securing your property.

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Subcategories

Alarm System Kit Combustible Gas Detector GPS Tracker Home Automation Infrared Alarm Detector Leakage Detector Temperature Sensor Window Door Sensor

Related keywords

Use these keywords to refine your search and find exactly what you're looking for.

Tuya WiFi door sensor Zigbee motion detector PIR infrared alarm window vibration sensor wireless water leak detector smart smoke detector pet immune motion sensor 433MHz security sensor

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Alarm Sensor: FAQ

Will these sensors work with my existing alarm hub?

Most sensors operate on specific frequencies like 433MHz or protocols like Zigbee and Wi-Fi. Always verify your hub's frequency compatibility in the product specs before purchasing to ensure seamless integration.

How do I avoid cheap sensors that trigger false alarms?

Look for 'Pet Immune' features and dual-element PIR technology in the specifications. These advanced filters significantly reduce false triggers caused by pets, drafts, or temperature changes.

How long do the batteries last in wireless sensors?

High-quality sensors using CR123A or CR2032 batteries typically last 1-2 years depending on traffic. Check for a 'Low Battery Alert' feature in the description to ensure you are notified via app before power runs out.

Is shipping safe for sensors containing batteries?

Yes, but be aware that sensors including batteries might face stricter shipping regulations. Choosing 'AliExpress Standard Shipping' is recommended for reliable tracking and faster customs clearance.

Recommendations for buyers

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Connectivity Protocol
Determine if you need Wi-Fi (direct to router), Zigbee (requires a gateway hub), or RF 433MHz (connects to traditional alarm panels). Incompatible protocols will not communicate.
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Detection Range and Angle
For motion sensors, check the detection angle (usually 110 degrees) and distance (typically 8-12 meters) to ensure the sensor covers the intended area without blind spots.
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Smart Ecosystem Integration
If building a smart home, ensure the sensor is explicitly marked as compatible with your ecosystem, such as Google Home, Amazon Alexa, or the Tuya Smart Life app.
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Installation Type
Check if the sensor comes with industrial-strength adhesive tape for easy DIY installation or if it requires drilling and screws for a permanent fixture.