HC-SR501 PIR Motion Sensor

$5.00 USD
The price is for a single piece.
There are 5 pieces in the retail box.
The quantity has to be a multiple of 5.
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Categories: Sensors

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Total price:$7.00

Introducing the Lonely Binary SR501 Motion Sensor, the superhero of motion detection! Equipped with advanced PIR technology, this sensor unleashes its powers to sense every move with precision. Say goodbye to boring routines and embrace a world of excitement and automation.

Featuring the magical ability to detect changes in infrared radiation levels, our SR501 Motion Sensor can detect the subtlest movements, even when you thought you were as sneaky as a ninja. Step into a room, and the sensor will sense the change in temperature caused by your presence, instantly activating its superpowers.

But that's not all! Our motion sensor is the ultimate sidekick for your Raspberry Pi. Powered directly from the Pi's 5V output, it harmoniously communicates with the Pi's GPIO input, creating an unstoppable partnership. With a digital 3.3V output, the sensor's signals are as clear as crystal, ensuring seamless integration with your Raspberry Pi projects.

Prepare to be amazed by the adjustable delay feature of this superhero sensor. With a range of approximately 0.5 to 200 seconds, you have the power to customize the timing of its actions. It adapts to your needs, providing the perfect balance of speed and precision. And did we mention its sensitivity is adjustable too? You're in full control!

Mounting this sensor is a breeze, thanks to its two mighty M2 mounting holes. It's ready to accompany you on any adventure, whether you're creating a security system or a smart home marvel. Power it up with 4.5V to 20V, or unleash its true potential by bypassing the regulator with a touch of soldering, allowing it to operate at 3V.

With a sensing range that reaches up to 7 meters in a 100-degree cone, the Lonely Binary SR501 Motion Sensor leaves no corner unguarded. It's like having a team of vigilant heroes watching over your space, ready to leap into action at a moment's notice.

Choose Lonely Binary, the brand that stands out among the crowd, and join our mission to make the world a more exciting and automated place. Upgrade your projects with the unrivaled power of the SR501 Motion Sensor. Together, we can conquer any challenge and create a future filled with endless possibilities.


Tech Specs

Input Voltage Embrace flexibility with an input voltage range of 4.5V to 20V. It adapts to your power source, ensuring compatibility with a wide range of setups.
Current Draw With an incredibly low current draw of less than 50µA, this motion sensor is energy-efficient, saving you power while delivering exceptional performance.
Digital Output Experience the clarity of a 3.3V digital output when the motion is detected. It provides a strong signal, allowing for seamless integration with your projects.
Working Temperature From chilling cold to scorching heat, this motion sensor can handle it all. With a working temperature range of -15°C to 70°C, it's built to endure extreme conditions.
Delay Time Customize the delay time according to your needs, ranging from an impressive 0.5 to 200 seconds. It offers flexibility to suit different scenarios and applications.
Sensing Angle The SR501 boasts a wide 100° cone sensing angle, ensuring comprehensive coverage and accurate motion detection. No movement goes unnoticed!
Range With a remarkable range of 5m to 7m, this motion sensor provides an extensive coverage area, making it ideal for various indoor and outdoor applications.
Dimensions The sensor lens diameter measures 23mm, offering a compact yet powerful solution. The centre screw hole distance is 28mm, allowing for easy mounting, and the screw hole diameter is 2mm (M2), ensuring a secure installation.
Net Weight 6 g
Dimension (L) 33 mm x (W) 23 mm x (H) 20 mm


What’s in the Box

There are 5 pieces in the retail box.
The listing price is for

  • 1 x SR501 Motion Sensor



  • Australia Orders over $55 - Your order will enjoy free shipping via Australia Post Standard Shipping Services. 
  • International Orders over $99 - Your order will be posted via Australia Post Air Mail Services. 

Raspberry Pi board / Micro:bit board / NVIDIA board will be excluded; All PCB orders will not enjoy free shipping. Distributors and wholesale orders are not eligible for free shipping.


At this time, LONELY BINARY is an online-only business, with our products available through lonelybinary.com. This allows us to keep the cost down for the customer. Orders cannot be picked up. 


We ship Australia wide to all addresses, including PO Box, Parcel Locker, etc.All Australian orders will be shipped via Australia Post, Courier Please or Fastway Couriers (Aramex). International Orders will be shipped via Australia Post or DHL. Your order will be shipped within one business day after we receive payment, providing the items are in stock.

  • Standard Shipping
    Sent via standard Australia Post stamped letter mail, typically 5-9 business days. No tracking/support available other than confirmation of dispatch.
  • Express Post
    Sent via Australia Post Express Service, Fastway Courier or Courier Please, 1 – 2 business days for metro orders, potentially longer for orders outside of metro zones, with full tracking.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Shipping costs for international orders vary depending on location and package size, where possible we have kept this to flat rate charges to reduce confusion. International orders are shipped through Australia Post and DHL courier service depending on the most economical at the time. 


Shipping Method via Delivery Area Delivery Time(business day) Tracking No. Weight Limit
DHL Asia 1-2 YES No Limit
western EU 2-3 YES No Limit
eastern EU 3-5 YES No Limit
North America 2-3 YES No Limit
Australia 2-3 YES No Limit
South America 3-5 YES No Limit
South Africa 3-5 YES No Limit


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