---
product_id: 141462123
title: "PM2.5 Sensor"
brand: "keenso"
price: "$49.99"
currency: USD
in_stock: null
reviews_count: 4
url: https://www.desertcart.us/products/141462123-pm2-5-sensor
store_origin: US
region: United States of America
---

# High-sensitivity optical sensor ±5% measurement accuracy Adaptive airflow control PM2.5 Sensor

**Brand:** keenso
**Price:** $49.99
**Availability:** ❌ Out of Stock

## Summary

> 🌫️ Breathe smarter, live better — don’t let bad air sneak up on you!

## Quick Answers

- **What is this?** PM2.5 Sensor by keenso
- **How much does it cost?** $49.99 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/141462123-pm2-5-sensor)

## Best For

- keenso enthusiasts

## Why This Product

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

## Key Features

- • **Rock-Solid Stability:** High-performance optical modules guarantee stable operation for long-term monitoring without glitches.
- • **Smart Airflow Control:** Constant wind pressure and adaptive flow system ensure consistent, reliable data no matter the conditions.
- • **Precision You Can Trust:** Advanced scattering tech delivers ultra-accurate PM2.5 readings to keep your environment in check.
- • **Sleek & Functional Design:** Innovative same-side air inlet/outlet simplifies installation and enhances dustproofing.
- • **Environment-Proof Calibration:** Depth algorithm optimizes compensation for consistent results across diverse environments.

## Overview

The PM2.5 Air Particle Sensor G5 PMS5003 is a compact, high-precision digital module designed for real-time air quality monitoring. Utilizing advanced scattering principles and adaptive airflow control, it delivers stable and accurate particulate matter measurements. Its optimized compensation algorithm ensures consistent performance across varying environments, while the streamlined design simplifies integration and protects the sensor from dust. Ideal for professionals seeking reliable indoor air quality data to power smart purifiers or environmental monitoring systems.

## Description

PM2.5 Air Particle/dust Sensor G5 PMS5003 Digital Output Module air Purifier Air Quality Monitoring Dust Haze Tester: desertcart.com: Industrial & Scientific

Review: Didn’t Fit My Connector - I think this is a very capable PM sensor, just make sure it fits into the connector that you have on your machine . The air purifier that was using the PM sensor had a different connection port, so this item didn’t work. Just double check that before you go purchasing this.
Review: Works! Easy to connect - The device works great. It connects to your microprocessor via UART. Several libraries available on GitHub so easy to use on Arduino or Raspberry PI. I used an ESP32 to test the unit and it worked well. Unit able to detect all sorts of particles. Smoke, mist, powder, etc....

## Features

- √ [Accurate Measurement] -- The scattering principle enables accurate measurement and reduces errors.
- √ [Control System] -- Constant wind pressure and flow adaptive control system.
- √ [Performance Stable] -- The optical system uses high-performance modules and light-sensitive components to make the operation stable.
- √[Optimization Compensation]--The depth algorithm is used to optimize the compensation to ensure stable and consistent measurement results in different environments.
- √ [Excellent design] -- The same side air inlet and outlet simplifies the structural design and dustproof sensor structure design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07S3735CY |
| Best Sellers Rank | #696,244 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #940 in Indoor Air Quality Meters |
| Date First Available | May 22, 2019 |
| Item Weight | 0.317 ounces |
| Item model number | Keenso1e8bhfxci4 |
| Manufacturer | Keenso |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches |

## Images

![PM2.5 Sensor - Image 1](https://m.media-amazon.com/images/I/415t+ZjdzoL.jpg)
![PM2.5 Sensor - Image 2](https://m.media-amazon.com/images/I/41AtdZeInNL.jpg)
![PM2.5 Sensor - Image 3](https://m.media-amazon.com/images/I/41O-Yb-EwzL.jpg)
![PM2.5 Sensor - Image 4](https://m.media-amazon.com/images/I/41nBpSGd4oL.jpg)
![PM2.5 Sensor - Image 5](https://m.media-amazon.com/images/I/41oPRyxSslL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Didn’t Fit My Connector
*by M***M on February 26, 2024*

I think this is a very capable PM sensor, just make sure it fits into the connector that you have on your machine . The air purifier that was using the PM sensor had a different connection port, so this item didn’t work. Just double check that before you go purchasing this.

### ⭐⭐⭐⭐⭐ Works! Easy to connect
*by S***Y on May 21, 2022*

The device works great. It connects to your microprocessor via UART. Several libraries available on GitHub so easy to use on Arduino or Raspberry PI. I used an ESP32 to test the unit and it worked well. Unit able to detect all sorts of particles. Smoke, mist, powder, etc....

### ⭐ Great while it worked
*by A***R on September 8, 2022*

Device had accurate readings for about 2 months and then stopped working. Fan still spins but always reads 0.0 for all the readings.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*