---
product_id: 49816985
title: "Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range"
brand: "dfrobot"
price: "€ 25.46"
currency: EUR
in_stock: true
reviews_count: 4
category: "Dfrobot"
url: https://www.desertcart.gr/products/49816985-gravity-analog-turbidity-sensor-for-arduino-esp32-stm32-raspberry-pi
store_origin: GR
region: Greece
---

# Response <500ms 0-4000 NTU range Dual Analog & Digital Output Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range

**Brand:** dfrobot
**Price:** € 25.46
**Availability:** ✅ In Stock

## Summary

> 💧 See the unseen: Master water clarity with precision and speed!

## Quick Answers

- **What is this?** Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range by dfrobot
- **How much does it cost?** € 25.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/49816985-gravity-analog-turbidity-sensor-for-arduino-esp32-stm32-raspberry-pi)

## Best For

- dfrobot enthusiasts

## Why This Product

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

## Key Features

- • **Dual Output Flexibility:** Choose between analog (0-4.5V) or digital signals to tailor your project’s precision and control.
- • **Plug & Play Compatibility:** Seamlessly integrates with Arduino, ESP32, STM32, and Raspberry Pi for effortless prototyping.
- • **Broad Spectrum Sensitivity:** Measures turbidity from crystal-clear to heavily turbid waters (0-4000 NTU) for versatile applications.
- • **Instant Clarity, Real-Time:** Lightning-fast turbidity detection under 500ms keeps you ahead in water quality monitoring.
- • **Pro-Level Tutorials Included:** Access detailed guides from DFRobot to accelerate your setup and maximize sensor performance.

## Overview

The Gravity Analog Turbidity Sensor by DFRobot offers rapid (<500ms) and accurate turbidity measurement across a wide 0-4000 NTU range. Compatible with popular microcontrollers like Arduino, ESP32, STM32, and Raspberry Pi, it supports both analog and digital outputs for flexible integration. Ideal for environmental monitoring, scientific research, and industrial applications, this sensor combines professional-grade performance with user-friendly tutorials to empower your water quality projects.

## Description

INTRODUCTION The arduino turbidity sensor detects water quality by measuring level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. This arduino turbidity sensor have both analog and digital signal output modes. You can select the mode according to the MCU as threshold is adjustable in digital signal mode. Turbidity sensors can be used in measurement of water quality in rivers and streams, wastewater and effluent measurements, sediment transport research and laboratory measurements. Please note that the top of probe is not waterproof! SPECIFICATION Operating Voltage: 5V DC Operating Current: 40mA (MAX) Response Time: <500ms Insulation Resistance: 100M (Min) Output Method:Analog Analog output: 0-4.5V Digital Output: High/Low level signal (you can adjust the threshold value by adjusting the potentiometer) Operating Temperature: 5℃~90 ℃ Storage Temperature: -10℃~90℃ Weight: 30g Adapter Dimensions: 38*28*10mm/1.5 *1.1*0.4inches SHIPPING LIST Turbidity sensor adapter x1 Turbidity sensor probe x1 Turbidity sensor cable x1 Gravity analog sensor cable x1

Review: Device works nice. No complaints - This is basically the exact same part you'll see in the bottom of your dishwasher, but broken out for generic usage. Device works nice. No complaints, and there's documentation floating around on the internet about it.
Review: Turbidity meter use - I was hoping to use for reasonable turbidity reading for nearly clear lake water. Inaccurate at low levels and reading drifts.

## Features

- Easy to Use: This Turbidity Sensor is compatible with Arduino, ESP32, STM32, and Raspberry Pi (ADC Required).
- Dual Signal Output: Supports both Analog (0-4.5V) and Digital (High/Low) modes for flexible integration.
- Fast Detection: Detects turbidity levels from 0-4000NTU with a fast response time of <500ms, suitable for various applications including rivers, streams, wastewater and effluent measurements, sediment transport research, and laboratory measurements.
- Detailed Tutorials: Find comprehensive tutorials for using this Turbidity Sensor on the DFRobot Official website.
- Usage Note: Avoid fully submerging the sensor in water. Place the small round head of the split parts into the water for measurement. Please be aware that the top of the probe is not waterproof.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075T3CVH6 |
| Best Sellers Rank | #100,635 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Lab Turbidity Meters |
| Brand | DFROBOT |
| Brand Name | DFROBOT |
| Current Rating | 40 Milliamps |
| Customer Reviews | 4.7 out of 5 stars 37 Reviews |
| Lower Temperature Rating | 5 Degrees Celsius |
| Manufacturer | DFROBOT |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Supply Voltage | 5 Volts (DC) |
| Measurement Accuracy | ±5% |
| Model | SEN0189 |
| Mounting Type | Flange Mount |
| Output Type | Push Pull, Analog |
| Part Number | SEN0189 |
| Response Time | 500 Milliseconds |
| Smart Home Compatibility | Smart Home Compatible |
| Specific Uses For Product | Environmental Monitoring, Scientific Research |
| Style | Industrial |
| Style Name | Industrial |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 90 Degrees Celsius |

## Product Details

- **Brand:** DFROBOT
- **Current Rating:** 40 Milliamps
- **Lower Temperature Rating:** 5 Degrees Celsius
- **Material:** Plastic
- **Style:** Industrial

## Images

![Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range - Image 1](https://m.media-amazon.com/images/I/61PUgqdOMdL.jpg)
![Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range - Image 2](https://m.media-amazon.com/images/I/61SE60M0mnL.jpg)
![Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range - Image 3](https://m.media-amazon.com/images/I/61JB5kZGIFL.jpg)
![Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range - Image 4](https://m.media-amazon.com/images/I/61k5DBOXo-L.jpg)
![Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range - Image 5](https://m.media-amazon.com/images/I/61ULUCwRa-L.jpg)

## Questions & Answers

**Q: Every turbidity tester costs $ 250+, so how does this sensor is priced $ 15?**
A: This sensor cannot be used as professional equipment due to the low-precision, you can use it in experimental project and laboratory measurements.

**Q: Is the dac pcb necessary if i just want to use it in analog mode with my arduino?**
A: Yes, you need to simulate the pattern with A

**Q: Does this come with the cable for connecting to arduino?**
A: It comes with a gravity 3-pin female cable, which will be easy to connect to our IO expansion shield, if your arduino is UNO, you still need to use three more male-male jumper wire.

**Q: will this work on 3.3V as well?**
A: No, this analog turbidity sensor needs to operate at 5V.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Device works nice. No complaints
*by J***J on April 25, 2018*

This is basically the exact same part you'll see in the bottom of your dishwasher, but broken out for generic usage. Device works nice. No complaints, and there's documentation floating around on the internet about it.

### ⭐⭐⭐⭐ Turbidity meter use
*by O***Z on October 23, 2024*

I was hoping to use for reasonable turbidity reading for nearly clear lake water. Inaccurate at low levels and reading drifts.

### ⭐⭐⭐⭐⭐ Another great sensor
*by M***T on October 10, 2020*

I use loads of sensors and really enjoy building electronic gadgets. I have this connected to and ESP32, with 2 DS18b20 temp sensors, a PH sensor, 2 ultrasonic sensors, light sensors and this turbidity sensor. Purpose, to monitor my pond, and filtration system. There is nothing worse than the pump failing, water levels dropping or rising too high, UV failure - or bad PH levels. Linked up to a dashboard on Blynk i will know exactly whats going on even when I'm not home - once i get it all installed.

## Frequently Bought Together

- Gravity: Analog Turbidity Sensor for Arduino / ESP32 / STM32 / Raspberry Pi (ADC Required) | Water Quality Monitor | <500ms Response Time & 0-4000NTU Range
- Gravity: Analog TDS Sensor for Arduino | Total Dissolved Solids Meter | Water Quality Sensor Compatible with Arduino
- CQRobot TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-05-20*