Water Turbidity Sensor with Analog Module – NTU Measurement
Water Turbidity Sensor with Analog Module – NTU Measurement
This water turbidity sensor provides analog output proportional to suspended solids in water, measuring 0–3000 NTU. It includes an optical probe with emitter and detector, and a signal conditioning module for direct connection to microcontrollers. Ideal for water quality monitoring in tanks, rivers, and industrial processes.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | 5V DC |
| Output Signal | Analog 0–4.5V |
| Measurement Range | 0–3000 NTU |
| Response Time | <500 ms |
| Probe Material | ABS plastic, waterproof |
| Cable Length | 1 meter |
What You Can Build With This
- Arduino-based water quality monitor with LCD display
- Automatic fish tank turbidity detector and filter controller
- Washing machine rinse water clarity check using ESP32
- River pollution level logger with SD card and RTC
Compatibility
Works with any microcontroller accepting 0–5V analog input, including Arduino Uno, Mega, Nano, ESP8266, ESP32, and Raspberry Pi (with external ADC). The module operates at 5V and outputs an analog voltage within the safe range for 5V-tolerant boards.
Wiring Notes
Connect VCC to 5V, GND to ground, and analog OUT to any ADC pin (e.g., A0 on Arduino). Keep the probe area free from air bubbles and direct ambient light for consistent readings. No pull-up resistor is required.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the module outputs 0–4.5V analog signal that can be read directly by Arduino analog pins. Use the 5V supply from the board.
How do I calibrate the sensor?
Place the probe in clean water for a baseline (0 NTU) and note the voltage. Use a solution of known turbidity to establish the scaling factor in your code.
Can the probe be fully submerged?
The sensor probe is waterproof and designed for immersion, but the signal module and connections must remain dry. Submerge only the probe portion.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items