A
Anonymous
Apr 15, 2026
Rating: 3/5
Range varies
Works okay indoors, but struggles with glass obstacles.
Description
Mini AM312 Human Body Infrared Induction Module, Pyroelectric IR Sensor, Motion Detection Probe Board
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | DC 3.3V - 5V |
| Detection Distance | Up to 7 meters |
| Detection Angle | 100 degrees cone angle |
| Output Signal | 3.3V TTL logic level |
| Delay Time | Adjustable (5s - 200s) |
| Blockade Time | 2.5 seconds (default) |
| PCB Dimensions | 22mm x 17mm |
| Working Temperature | -20°C to +80°C |
| Sensor Type | Pyroelectric Infrared (PIR) |
| Package Includes | 1 x AM312 Module, 1 x Pin Header |
5 reviews
A
Anonymous
Mar 29, 2026
Rating: 5/5
Easy to use
Simple wiring and plenty of tutorials online.
A
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect for Arduino Projects
Works flawlessly with my Uno. Very sensitive and compact.
A
Anonymous
Mar 09, 2026
Rating: 4/5
Good value
Does the job well. Wish the pins were pre-soldered.
A
Anonymous
Jan 18, 2026
Rating: 5/5
Tiny but mighty
Great detection range for such a small board.
5 FAQ
Q: What is the output current?
A: The output current is less than 100uA.
Q: Does it detect pets?
A: It detects heat movement, so larger pets may trigger it.
Q: Can I use this with 3.3V logic?
A: Yes, it operates between 3.3V and 5V.
Q: Is it waterproof?
A: No, this module is for indoor use only.
Q: How do I adjust sensitivity?
A: There is a potentiometer on the back for time delay adjustment.
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