Features:

  • AM312 Human Sensing Module: Based on passive body infrared technology digital intelligent automatic control products, high sensitivity, reliability, widely used in various types of automatic induction electrical equipment.
  • Low power consumption, small size, easy to install.(5 PACK can search ASIN B07NPKMH58)
  • Internal use of digital signal processing, pit interference strong.
  • Repeatable trigger mode: that is, after the induction output is high, in the delay period, if the body in its induction range of activities, the output will remain high until the delay after the person to become Low level. (Ie, the sensing module automatically detects a delay period after each activity of the human body, and takes the last active time as the starting point for the delay time).
  • Working voltage: DC 2.7-12V;Static power consumption: <0.1mA;Sensing range: ≤100 degree cone angle, 3-5 m; (required depending on the lens) Working temperature: -20 to + 60 ℃
Love these little PIRs and the company has been great!

I bought these little PIRs because they accept 3.3 volts, work directly with a Sonoff basic, and are small and attractive. You can buy a simple cable faceplate to put these in. They work great and when I had a problem with one of them, the company did a great job to help me. I would (and did) buy more of these from this company.

Good one. No false positives.

Works as expected. I tried the other brand and got too many false positives. This is a good one.

Works Perfectly

This device works very well, is small, the most important of this device is that it works very very very well. Excellent, I recommend A+++++.

A++++

Works better than expected.

sensitive

made an insult project so when folks walk by it insults them

So far this little module seems to be working great.

Component looks like high quality PCB and SMD junctions, all in all, It has done exactly as advertised, already using the pack for some DIY lighting projects and counting probe. Will have to see what I can do with a pair on the same device to perceive depth alignments.

Senses large masses of heat like it's supposed to

It works extremely well so far, and I haven't experienced any misfiring of any sort. It's much tinier than I thought it was going to be also! Major plus!

Easy to use

Easy to use and listen to Tyler Childers

Perfect for Magic Mirror

This was the last part that i needed for my magic mirror. The sensor works perfect, it'll even pickup someone that walks across the hallway in front of my room and turn my monitor on. Cant go wrong especially with the price.

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