Features:

  • Use Potentiometer 105, output timing is from 0.5S to 200S
  • Reference links: https://www.mysensors.org/build/motion
  • Operating voltage range: DC 4.5-20V
  • What you will get: 5PCS HC-SR501 PIR Infrared Sensor
  • How to email us? Please click “Dragino”(you can find Sold by Dragino under Buy Now button), in the new page, click “Ask a question” to email us
As per the HC-SR501 data sheet, stops detecting as temperature approaches 30 degrees celsius

As per the HC-SR501 data sheet, stops detecting ("detection range is shorter") as temperature approaches 30 degrees celsius (approximately 90 degrees fahrenheit). These units have the through-holes to add a thermistor to improve high temperature performance, if one has a thermistor to add. The real test is if starts detecting again when the temperature drops. I plan to drop my score one star for each unit that permanently fails on me. Worked just fine the first three days I had it connected. Easy to set up. Pins fit well into female Dupont wires for prototyping.

Works great with a DC switching circuit

I used one of these PIRs to activate a DC switching circuit, that I also got on Amazon, in order to control a linear actuator for a Halloween decoration. I used this PIR because it has adjustable timing.

Very Satisfied!

Does what it says it does. Very satisfied. Use it for my home security system. Have not had any false alarms but we dont have any pets.

Good for Raspberry Pi projects

I used one of these for my Pi based Magic Mirror project and it works well. Build quality seems good and I’ve had no problems so far!

Cool little pir sensors.

Worked pretty good, easy to hook up too

Class supplies

Worked great or the IoT summer camp.

Good Value

Built this into a breadboard circuit and it worked very well. Easy to use.

Good simple PIR sensor

Easy to use and works well

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