---
product_id: 202361882
title: "5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders"
brand: "youmile"
price: "C$1918"
currency: NIO
in_stock: true
reviews_count: 13
category: "Youmile"
url: https://www.desertcart.ni/products/202361882-5pcs-speed-measuring-sensor-ir-infrared-slotted-optical-optocoupler-module
store_origin: NI
region: Nicaragua
---

# Stable Schmitt trigger output for noise-free signals Infrared detection for precise speed sensing Compact 26.8x15x18.7mm size fits tight spaces 5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders

**Brand:** youmile
**Price:** C$1918
**Availability:** ✅ In Stock

## Summary

> 🚀 Measure Speed Like a Pro — Don’t Let Your Projects Lag Behind!

## Quick Answers

- **What is this?** 5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders by youmile
- **How much does it cost?** C$1918 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/202361882-5pcs-speed-measuring-sensor-ir-infrared-slotted-optical-optocoupler-module)

## Best For

- youmile enthusiasts

## Why This Product

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

## Key Features

- • **Complete Sensor Kit:** Includes 5 sensors, 5 encoders, and versatile 15-pin Dupont cables for quick setup
- • **Compact & Mount-Ready:** Slim 26.8mm x 15mm x 18.7mm design with 3mm mounting holes fits perfectly in robotics kits
- • **Visual Signal Indicator:** LED lights up on beam interruption for instant feedback
- • **Plug & Play Compatibility:** Works seamlessly with 3.3V to 5V MCUs including Arduino and Raspberry Pi
- • **Precision Infrared Sensing:** Eliminates stray light interference for accurate motor speed detection

## Overview

This 5-piece IR slotted optical sensor kit offers precise motor speed measurement with stable Schmitt trigger outputs and visual LED indicators. Designed for easy integration with Arduino and Raspberry Pi, its compact form factor and included encoders and cables make it the ultimate plug-and-play solution for robotics and automation enthusiasts.

## Description

Description: This is a photo Interrupter Sensor for robot speed measuring module which used as motor speed detection and pulse counter. Specification Power: 3.3V to 5V Dimension: 26.8mm x 15mm x 18.7mm Mounting holes size: 3mm Gap width: 6mm In the case of working with a MCU: VCC: 3.3V to 5V GND: GND DOUT: MCU.IO (digital output) Package included: 5 x Speed Measuring Sensor IR Infrared Slotted Optical 5 x Encoders 1 x 15Pin Dupont Cable Female to Male 1 x 15Pin Dupont Cable Femlae to Female

Review: Photo-interrupter + circuit board - I hadn't noticed that the photo-interrupters are mounted on little printed circuit boards. I don't know what voltage they can work off, but they seem happy with my Raspberry Pi's 3.3V. Just 3 connections: power, ground and output. In case anyone's interested in the dimensions, the mounting holes are 3.2mm diameter, 21mm between centres, and the gap for the slotted wheel is 6mm wide.
Review: They fit the holes in the acrylic of the robot car kit perfectly - I am pleased with this purchase. The optocouplers worked without a problem and they fitted neatly in the pre-cut holes in the robot car kit I bought (see image above) -something I was concerned about. The wheel encoders are fine, made of good quality plastic and they fit those yellow gear motors that are so popular. I would recommend this product for purchase.

## Features

- Infrared detection, eliminating the interferences of external stray light
- Schmitt trigger, stable wave form and signals
- Signal output indicator (while breaking the beam, outputs low level, the indicator lights up)
- Power: 3.3V to 5V
- Dimension: 26.8mm x 15mm x 18.7mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0817FM4BJ |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 17,129 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Optical Sensors |
| Customer Reviews | 4.3 4.3 out of 5 stars (85) |
| Date First Available | 9 Nov. 2019 |
| Item Weight | 20 g |
| Item model number | GR-YM-227 |
| Manufacturer | Youmile |
| Package Dimensions | 15.8 x 6.4 x 2 cm; 20 g |
| Part number | GR-YM-227 |

## Images

![5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders - Image 1](https://m.media-amazon.com/images/I/31eHwdcs-zL.jpg)
![5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders - Image 2](https://m.media-amazon.com/images/I/419nbHkeKuL.jpg)
![5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders - Image 3](https://m.media-amazon.com/images/I/41MPOYMrtKL.jpg)
![5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders - Image 4](https://m.media-amazon.com/images/I/41ZM86JOQaL.jpg)
![5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders - Image 5](https://m.media-amazon.com/images/I/514MiMIaoQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Photo-interrupter + circuit board
*by B***E on 26 August 2021*

I hadn't noticed that the photo-interrupters are mounted on little printed circuit boards. I don't know what voltage they can work off, but they seem happy with my Raspberry Pi's 3.3V. Just 3 connections: power, ground and output. In case anyone's interested in the dimensions, the mounting holes are 3.2mm diameter, 21mm between centres, and the gap for the slotted wheel is 6mm wide.

### ⭐⭐⭐⭐⭐ They fit the holes in the acrylic of the robot car kit perfectly
*by M***G on 9 September 2020*

I am pleased with this purchase. The optocouplers worked without a problem and they fitted neatly in the pre-cut holes in the robot car kit I bought (see image above) -something I was concerned about. The wheel encoders are fine, made of good quality plastic and they fit those yellow gear motors that are so popular. I would recommend this product for purchase.

### ⭐⭐⭐⭐ tops out about 160mph
*by M***. on 22 August 2022*

Used it as a temp for a Dyno it was fine for anything up to about 750cc but could not handle most 1000cc + It is not designed for use at the speeds that a Motorcycle Dyno can run but it held up well, the speed is pretty accurate up to about 155,then it gives up. I have had to change to a different sensor but keep a couple of these just in case.

## Frequently Bought Together

- Youmile 5Pcs Speed Measuring Sensor IR Infrared Slotted Optical Optocoupler Module Photo Interrupter Sensor for Motor Speed Detection or Arduino with Encoders
- ELEGOO UNO R3 Board for Arduino with USB Cable(Arduino-Compatible) More Faster In Transfer Rates And Better At Storage And Operation
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ni/products/202361882-5pcs-speed-measuring-sensor-ir-infrared-slotted-optical-optocoupler-module](https://www.desertcart.ni/products/202361882-5pcs-speed-measuring-sensor-ir-infrared-slotted-optical-optocoupler-module)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-22*