Infrared Alarm Detector

Modern Infrared Motion Security Solutions

Infrared alarm detectors on AliExpress now offer professional-grade security at consumer-friendly prices. With advancements in PIR (Passive Infrared) technology, these sensors provide high sensitivity with significantly reduced false alarm rates. Whether for residential or commercial use, the latest models integrate seamlessly with smart home ecosystems for real-time protection.

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Infrared Alarm Detector: FAQ

How do I ensure the sensor covers my entire room?

Check the detection angle and distance specifications in the listing; most standard units offer 110 degrees and 8-12 meters. Always measure your room dimensions and compare them against the 'effective range' mentioned by the seller.

How can I distinguish between outdoor and indoor models?

Look specifically for IP65 or higher waterproof ratings for outdoor use. Authentic outdoor models feature UV-resistant ABS plastic housings to prevent degradation from sun exposure.

What technical specs indicate a high-quality PIR sensor?

Prioritize sensors with 'Dual Element' technology and 'Automatic Temperature Compensation' (ATC). These features ensure the device remains accurate by adjusting sensitivity based on ambient environmental heat.

Are these detectors prone to damage during international shipping?

Most sensors are lightweight and durable, but it is wise to choose 'AliExpress Standard Shipping' for better tracking and handling. Check reviews to ensure the seller uses dedicated cardboard boxes rather than just bubble mailers.

Recommendations for buyers

✓
Detection Range and Coverage
Ensure the sensor supports a minimum of 8-12 meters for standard rooms and look for a 110-degree horizontal field of view to eliminate blind spots.
✓
Connectivity Protocol
Decide between 433MHz RF for traditional alarm panels or 2.4GHz WiFi/Zigbee for standalone smart app notifications and automation.
✓
Pet Immunity Features
If you have pets, look for 'Pet Immune' sensors rated for animals up to 15kg-25kg to prevent the alarm from triggering when your pet moves.
✓
Power Management
Opt for models with low-power consumption chips or those that offer dual power options (battery and micro-USB) for continuous operation.