---
product_id: 41086123
title: "Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167]"
brand: "adafruit"
price: "KD 3.30"
currency: KWD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.kw/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167
store_origin: KW
region: Kuwait
---

# <2ms ultra-fast response 25cm precise detection range 3.3-5.5V flexible power input Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167]

**Brand:** adafruit
**Price:** KD 3.30
**Availability:** ✅ In Stock

## Summary

> 🚀 Break the beam, not the flow — instant motion detection for the savvy pro.

## Quick Answers

- **What is this?** Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] by adafruit
- **How much does it cost?** KD 3.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167)

## Best For

- adafruit enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 20x10x8mm and 3g, it fits discreetly into any security or automation setup.
- • **Lightning-Fast Response:** Break beams react in under 2 milliseconds—faster than traditional PIR sensors for instant alerts.
- • **Powerful Output Control:** Open collector transistor output sinks up to 100mA, ready to drive relays, LEDs, or other devices.
- • **Pinpoint Motion Detection:** Detect movement exactly where you want with a focused 10° IR beam angle.
- • **Plug & Play Compatibility:** Works seamlessly with 3.3V or 5V systems, perfect for Raspberry Pi, Arduino, and smart home hubs.

## Overview

The Adafruit IR Break Beam Sensor (3mm LEDs) offers a precise, ultra-fast motion detection solution with a 25cm range and sub-2ms response time. Powered by 3.3-5.5V, it integrates effortlessly with popular microcontrollers and smart home systems. Its compact design and powerful open collector output make it ideal for professional-grade security and automation projects.

## Description

Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know.Compared to PIR sensors, breakbeams are faster and allow better control of where you want to detect the motion. Compared to Sonar modules, they're less expensive. However, you do need both emitter and receiver on opposite sides of the area you want to monitor.This is the 3mm IR version. It works up to 25cm / 10". You can power it from 3.3V or 5V, but 5V will get you better range and is what we suggest. The receiver is open collector transistor output which means that you do need a pull up resistor if you want to read a digital signal off the signal wire. Most microcontrollers have the ability to turn on a built in pull up resistor. If you do not, connect a 10K resistor between the white wire of the receiver and the red wire. If you want to control a relay or LED or whatever, it can sink up to 100mA to groundItem SpecificsSensing Distance: Approx 25cm / 10"Power Voltage: 3.3 - 5.5VDCEmitter Current Draw: 10mA @ 3.3V, 20mA @ 5VOutput Current Capability of receiver: 100mA sinkTransmitter/Receiver LED Angle: 10°Response Time: <2 msDimensions: 20mm x 10mm x 8mm / 0.8" x 0.4" x 0.3"Cable Length: 234mm / 9.2"Weight (of each half): ~3g

Review: Worked as expected without issue. - Used this for a beam-break project on Raspberry Pi 3B+. Worked as expected. Pretty easy to set up; I used Python for simplicity; ChatGPT was a big help.
Review: Awesome. - Someone wrote a review about small wires. Not sure what they are talking about. It comes with dupont pins as shown in pic and wires are smallish but are as expected. Everything is good and it works perfect for what I'm doing.

## Features

- Simple way to detect motion
- Faster than PIR sensors and allow better control of where you want to detect the motion
- Works up to 10 inches
- Open collector transistor output receiver

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BU6YBWU |
| Antenna Location | Walkway, Terrace, Garden, Sidewalk, Lawn, Driveway, Garage |
| Battery Description | battery not included |
| Best Sellers Rank | #62,245 in Electronics ( See Top 100 in Electronics ) #206 in Motion Detectors (Electronics) |
| Brand | Adafruit |
| Color | Black |
| Compatible Devices | Security Systems, Smart Home Hubs, Lighting Controls |
| Customer Reviews | 4.5 out of 5 stars 119 Reviews |
| Item Weight | 0.01 Ounces |
| Manufacturer | Adafruit |
| Maximum Range | 25 Centimeters |
| Mounting Type | Wall Mount |
| Power Source | Corded Electric |
| UPC | 600346598904 |

## Product Details

- **Brand:** Adafruit
- **Color:** Black
- **Item Weight:** 0.01 Ounces
- **Maximum Range:** 25 Centimeters
- **Power Source:** Corded Electric

## Images

![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 1](https://m.media-amazon.com/images/I/41yytLApGKL.jpg)
![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 2](https://m.media-amazon.com/images/I/41FEv0ZcTTL.jpg)
![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 3](https://m.media-amazon.com/images/I/41pBQEZVwwL.jpg)

## Questions & Answers

**Q: Where is the  IR breakbeam tutorial ?**
A: https://learn.adafruit.com/ir-breakbeam-sensors/overview

**Q: The holes under the emitter and receiver; are they screw holes for mounting? Or part of the system? Ie: can they be blocked without effecting the unit**
A: Yes, they are for mounting and can be blocked without issue.

**Q: 1 piece - does it mean that I need 2 items to implement a solution?  The photos shows always 2 items.  Or package includes sender and receiver as 1p.**
A: Package Includes Send and Receive components as 1 piece.

**Q: Does the ir breakbeam detect transparent objects? if so, how well does it tell the difference between tranparent and opaque?**
A: They are quite sensitive they will definitely detect opaque and probably transparent

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as expected without issue.
*by D***N on January 6, 2025*

Used this for a beam-break project on Raspberry Pi 3B+. Worked as expected. Pretty easy to set up; I used Python for simplicity; ChatGPT was a big help.

### ⭐⭐⭐⭐⭐ Awesome.
*by B***H on February 14, 2024*

Someone wrote a review about small wires. Not sure what they are talking about. It comes with dupont pins as shown in pic and wires are smallish but are as expected. Everything is good and it works perfect for what I'm doing.

### ⭐⭐⭐⭐ Works fine so faR
*by C***K on June 21, 2024*

Works well for 1/32 SCALE slot car timing trigger in light bridge at 6" distance with beam being broken in 1/1000s of a second.

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-03*