---
product_id: 344820737
title: "HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5)"
brand: "stemedu"
price: "€ 21.65"
currency: EUR
in_stock: true
reviews_count: 10
category: "Stemedu"
url: https://www.desertcart.pt/products/344820737-hc-sr505-mini-infrared-pir-motion-sensor-micro-ir-pyroelectric
store_origin: PT
region: Portugal
---

# 4.5-20V ultra low voltage 3m max detection range single trigger mode, plug & play HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5)

**Brand:** stemedu
**Price:** € 21.65
**Availability:** ✅ In Stock

## Summary

> 🚀 Detect the future with precision and style!

## Quick Answers

- **What is this?** HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) by stemedu
- **How much does it cost?** € 21.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/344820737-hc-sr505-mini-infrared-pir-motion-sensor-micro-ir-pyroelectric)

## Best For

- stemedu enthusiasts

## Why This Product

- Trusted stemedu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Miniature design fits anywhere, perfect for sleek, modern setups.
- • **Reliable Detection:** 3-meter sensing range ensures you never miss a movement.
- • **Effortless Integration:** Single trigger mode means zero hassle—just plug in and detect.
- • **Energy-Smart Operation:** Ultra low voltage (4.5-20V) keeps your projects efficient and green.
- • **Versatile Applications:** Ideal for smart home security, automation, and DIY tech innovations.

## Overview

The HC-SR505 Mini Infrared PIR Motion Sensor is a compact, highly sensitive human movement detector operating at ultra low voltage (4.5-20V) with a 3-meter detection range. This pack of 5 modules offers easy, single-mode triggering for seamless integration into security, automation, and electronic projects, making it a must-have for tech-savvy professionals and DIY enthusiasts alike.

## Description

desertcart.com: Stemedu HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) : Electronics

Review: i like em - They're good. I'm using em for Arduino projects
Review: Compact size PIR motion sensor - This is compact size PIR motion sensor. The price seems to be good for a batch of 5.

## Features

- 5 PCS HC-SR505 PIR human body motion detector sensors, full-automatic induction, excellent sensitivity. One kind of trigger modes, it is easy to operate.
- HC-SR505 body sensing module has small and exquisite appearance, it is convenient to carry.
- Working voltage: DC 4.5-20V, Light control (DARK TIME): 2 seconds, not adjustable
- Stable reliability, ultra low voltage operating mode.It can be widely used in many kinds of automatic induction electric equipment. Such as movement detection, automatic control, proximity switch, electronic theft prevention, safety protection, remote control measurement etc.
- HC-SR505 Videos: https(:)//www(dot)youtube(dot)com/watch?v=t1Tt_FY1gz4

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Stemedu |
| Color | 5PCS HC-SR505 Motion Sensor |
| Item Dimensions D x W x H | 0.39"D x 0.39"W x 1.18"H |
| Item Weight | 9.07 g |
| Maximum Range | 3 meters |
| Mounting Type | Wall Mount |
| Power Source | Electric |

## Product Details

- **Brand:** Stemedu
- **Color:** 5PCS HC-SR505 Motion Sensor
- **Power Source:** Electric
- **Item Weight:** 0.32 Ounces
- **Maximum Range:** 3 Meters

## Images

![HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) - Image 1](https://m.media-amazon.com/images/I/61NZ455lFnL.jpg)
![HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) - Image 2](https://m.media-amazon.com/images/I/61UnHMEDZqL.jpg)
![HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) - Image 3](https://m.media-amazon.com/images/I/516MgbeP2CL.jpg)
![HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) - Image 4](https://m.media-amazon.com/images/I/51ow1Tr11SL.jpg)
![HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5) - Image 5](https://m.media-amazon.com/images/I/51ixzQT85zL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ i like em
*by D***G on October 8, 2025*

They're good. I'm using em for Arduino projects

### ⭐⭐⭐⭐⭐ Compact size PIR motion sensor
*by L***U on June 28, 2023*

This is compact size PIR motion sensor. The price seems to be good for a batch of 5.

### ⭐ Do NOT purchase these sensors
*by D***L on April 1, 2023*

Do NOT purchase these sensors. They do not work due to very poor manufacturing quality. The first one I opened from packaging had wires not soldered to the board correctly. Thus it failed to work. And so it continued. Since I have no way to contact the seller, I can't request any replacement for faulting components. In the photo above, one sensor has wires NOT soldered at all. And another sensor, the wire is soldered but it is in the incorrect position such that it fails to work. Did anyone do any quality control? Apparently NOT.

## Frequently Bought Together

- Stemedu HC-SR505 Mini Infrared PIR Motion Sensor, Micro IR Pyroelectric Human Movement Detector Sensors Module (Pack of 5)
- Stemedu 5PCS RCWL-0516 Motion Detection Sensor, Microwave Radar Sensor Switch Module for Arduino ESP8266 Nodemcu Wemos for Animals Detector, Detection Distance 5-7m, Better Than HC-SR501
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-22*