---
product_id: 103560846
title: "HiLetgo 3pcs HC-SR501 PIR Infrared Sensor Human Body Infrared Motion Module for Arduino Raspberry Pi"
brand: "hiletgo"
price: "$19.93"
currency: USD
in_stock: true
reviews_count: 13
category: "Hi Letgo"
url: https://www.desertcart.us/products/103560846-hiletgo-3pcs-hc-sr501-pir-infrared-sensor-human-body-infrared
store_origin: US
region: United States of America
---

# 5-200s adjustable delay time 4.5-20V wide voltage range <100° detection angle HiLetgo 3pcs HC-SR501 PIR Infrared Sensor Human Body Infrared Motion Module for Arduino Raspberry Pi

**Brand:** hiletgo
**Price:** $19.93
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your smart projects with motion sensing precision!

## Quick Answers

- **What is this?** HiLetgo 3pcs HC-SR501 PIR Infrared Sensor Human Body Infrared Motion Module for Arduino Raspberry Pi by hiletgo
- **How much does it cost?** $19.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/103560846-hiletgo-3pcs-hc-sr501-pir-infrared-sensor-human-body-infrared)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Applications:** Ideal for smart security, automated lighting, industrial controls, and interactive IoT devices.
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino & Raspberry Pi for rapid prototyping and smart automation.
- • **Precision Motion Detection:** Detects human presence within a 2-meter range and a 100° cone angle for targeted sensing.
- • **Customizable Trigger Timing:** Adjust delay from fractions of a second up to 200 seconds to perfectly suit your project needs.
- • **Ultra-Low Power Consumption:** Consumes less than 50µA in standby, maximizing energy efficiency for continuous operation.

## Overview

The HiLetgo HC-SR501 PIR Infrared Motion Sensor is a compact, energy-efficient module designed for Arduino and Raspberry Pi users. Operating between 4.5V and 20V, it offers adjustable delay timing (5 to 200 seconds) and a 100° detection angle, making it perfect for security, automation, and interactive applications. This 3-pack bundle ensures you never miss a motion-triggered moment in your innovative projects.

## Description

Product description: Condition:100% brand new with good quality Product Type: HC--SR501 Body Sensor Module Operating voltage range: DC 4.5-20V Quiescent Current: <50uA Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger) Delay time: 5-18S(adjustable) the range is (0.xx second to tens of second) Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds Board Dimensions: 32mm*24mm Angle Sensor: <100 ° cone angle Lens size Sensor Diameter:23mm(Default) Applications: *Security Products *the human body sensors toys *the human body sensor lighting industrial automation and control, etc Use: It can automatically and quickly open various types of incandescent, fluorescent lamps, buzzer, automatic doors, electric fans,automatic washing machine and dryer Machines and other devices,is a hightech products. Especially suitable for enterprises, hotels, shopping malls, warehouses and family aisles, corridors and other sensitive Sense of region, or for the security zone automatic lighting, lighting and alarm systems. Package Included: 3* HiLetgo HC-SR501 PIR Infared Sensor

Review: Works as expected - Function: My order included 3 units. Each of these worked. The device has controls for adjusting duration triggered and sensitivity (detection distance). Once triggered the duration ranged 1sec to 6min. These values are consistent w/ the datasheet. I did not test sensitivity. Electrical Characteristics: Sensor pin output (Vout) range 3.19-3.33v across the input range tested (4-7v, datasheet recommended VCC range: 5-20v). PCB is approx. 24mm by 32mm (15/16inch x 1 1/4inch). Solder joints are clean. Would buy again.
Review: Who goes there? - Nifty little motion sensor. Easy to code and use with Arduino or Pico 2W. Nice feature is the ability to adjust time delay and sensitivity.

## Features

- Operating voltage range: DC 4.5-20V
- Quiescent Current: <50uA Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)
- Delay time: 5-200S(adjustable) the range is (0.xx second to tens of second)
- Board Dimensions: 32mm*24mm
- Angle Sensor: <100 ° cone angle Lens size sensor:Diameter:23mm(Default)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KZW86YR |
| Antenna Location | Sidewalk, Driveway |
| Battery Description | Battery not included |
| Best Sellers Rank | #9,718 in Electronics ( See Top 100 in Electronics ) #31 in Motion Detectors (Electronics) |
| Brand | HiLetgo |
| Color | Black, Green, White, Yellow |
| Compatible Devices | Arduino, Raspberry Pi |
| Customer Reviews | 4.4 4.4 out of 5 stars (375) |
| Item Weight | 0.81 Ounces |
| Manufacturer | HiLetgo |
| Maximum Range | 2 Meters |
| Mfr Part Number | 3-01-0120 |
| Model Number | 3-01-0120 |
| Mounting Type | Wall Mount |
| Operating Temperature | 50 Degrees Celsius |
| Power Source | DC Power Supply |

## Product Details

- **Brand:** HiLetgo
- **Color:** Black, Green, White, Yellow
- **Item Weight:** 0.81 Ounces
- **Maximum Range:** 2 Meters
- **Power Source:** DC Power Supply

## Images

![HiLetgo 3pcs HC-SR501 PIR Infrared Sensor Human Body Infrared Motion Module for Arduino Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/51EXfLr46kL.jpg)

## Questions & Answers

**Q: can these be hooked in a circuit without an Arduino**
A: I should think so. You just need a way of reading the values coming from the sensor to detect motion.

**Q: range please - how far away can it be from the surface that you are measuring?**
A: Depends on the sensitivity setting. I have had no problems in the 2 to 3 meter range which is perfect for my uses. Also, this is an infrared sensor that senses motion, so if your surface is stationery, you might consider an ultrasonic sensor instead.

**Q: What is the field of view at 20 ft.?**
A: It's pretty good, full range in 2 more feet

**Q: What are the dimensions of this?  Specifically looking at the depth of the white dome and size of the white square.  Trying to hide in woodworking.**
A: From the dome top to the top of the square is .5"
The square is .913" on a side

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as expected
*by M***E on December 15, 2025*

Function: My order included 3 units. Each of these worked. The device has controls for adjusting duration triggered and sensitivity (detection distance). Once triggered the duration ranged 1sec to 6min. These values are consistent w/ the datasheet. I did not test sensitivity. Electrical Characteristics: Sensor pin output (Vout) range 3.19-3.33v across the input range tested (4-7v, datasheet recommended VCC range: 5-20v). PCB is approx. 24mm by 32mm (15/16inch x 1 1/4inch). Solder joints are clean. Would buy again.

### ⭐⭐⭐⭐⭐ Who goes there?
*by G***D on August 2, 2025*

Nifty little motion sensor. Easy to code and use with Arduino or Pico 2W. Nice feature is the ability to adjust time delay and sensitivity.

### ⭐⭐⭐⭐ Good motion detection, poor documentation
*by P***A on November 24, 2023*

Once you can figure out how these are supposed to work, they do the job well. There are differing opinions (documentation) on how long the delay time is supposed to run; I read anywhere from 30 mins to 3 mins (mine have measured about 2.5 to 3 mins). The sensitivity doesn't seem to change much. The trigger once / repeat trigger jumper is a nice feature, and makes it possible act as either a digital switch, or an on as long as an infra-red delta is detected. If the input voltage drops to about 4.7v, the sensor misbehaves, and makes it appear as if other parts are failing, because the data output line switches on and off erratically; however, what can you expect with incorrect input voltage.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*