Item Description

This 5-pack of HC-SR501 PIR infrared motion sensors gives you multiple detection modules for security systems, automation projects, and smart home applications. Each sensor uses pyroelectric infrared technology to detect body heat and movement, making them reliable for triggering lights, cameras, or alarms when motion occurs. The modules are compact and easy to integrate into existing setups or new builds. Each HC-SR501 unit features adjustable sensitivity and delay time settings, so you can fine-tune detection range and response timing to match your specific space and needs. The sensor operates on a 5V power supply and outputs a digital signal that works with microcontrollers, Arduino boards, or standard relay circuits. Detection range typically extends 3 to 7 meters depending on how you adjust the potentiometers on the board. The modules come ready to use with clearly labeled pins for power, ground, and signal output. Whether you're building a garage motion light, a security system for multiple entry points, or experimenting with IoT projects, having five sensors lets you cover different areas or keep spares on hand. The pyroelectric sensor is passive, meaning it draws minimal power and doesn't emit any radiation, making it safe for residential and commercial environments.

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@jackwhit312

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