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Your cart is empty. 💎【AM312 Human Sensing Module(HC-SR312)】: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment.
⚡【Voltage】：DC 2.7-12V
⚡【Delay time】: 2 seconds;
⚡【Blocking time】: 2 seconds;
📐【Trigger mode】: repeatable;
📐【Sensing range】: ≤100 degree cone angle, 3-5 meters;
Technical parameters:
1. Working voltage: DC 2.7-12V;
2. Static power consumption: 3. Delay time: 2 seconds;
4. Blocking time: 2 seconds;
5. Trigger mode: repeatable;
6. Sensing range: ≤100 degree cone angle, 3-5 meters; (depending on the specific lens)
7. Working temperature: -20 - +60 °C;
8.PCB dimensions: 10mm*8mm;
9. Module lens: small lens;
Package Includes:
5Pcs AM312 Human Sensing Module(HC-SR312)
Adam Pouliot
Reviewed in the United States on March 7, 2025
The sensors work well but are not even close to being straight on the PCB they're mounted to. Because of the way the sensor is soldered to the PCB, it will just tilt another direction if you try to correct the bend. All in all they are a good value for the price if tight tolerances aren't a concern.
harold hare
Reviewed in the United States on April 2, 2025
I have been using SR501s for years. These are so much better. The are physically smaller, much easier to mount in a project box. Most importantly, they appear to have a slightly narrower field of detection, which I like and DON'T SEEM to have the false triggers.As long as you are using it with a micro controller, as I am, the ESP32, the fact that you can't change the trigger time is not an issue. I also like the fact that the sensitivity is fixed since it means I just install and go, no need to calibrate or set up.
Mark Millet
Reviewed in the United States on July 29, 2024
Installed, worked twice, and then didn't work again.
Paul J. Meistrell
Reviewed in the United States on June 29, 2024
I have had good luck getting these PIR to work reliably. Some other PIR did not work as well.
Deano
Reviewed in the United States on February 15, 2024
I wasn't expecting the range of 15'+ indoors. All were functional.
Clive Phillips
Reviewed in the United States on November 6, 2024
Works as expected and is a nice format for my project.
Kevin Critchfield
Reviewed in the United States on January 10, 2024
These sensors are a good value for the money, every order has arrived on time and I've never received a dud. That's 5 stars.
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