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Green PCB development board with separate turbidity probe on wires

LORDWORLD

LORDWORLD Analog Turbidity Sensor 0-4000NTU < 500ms Development Board

SKU CH-Q9KN-5VVF6

Measures water turbidity from 0-4000NTU with analog or digital output in under 500ms for Arduino, ESP32, STM32 or Raspberry Pi

  • Compatible with Arduino, ESP32, STM32, Raspberry Pi (ADC required)
  • Dual analog 0-4.5V and digital high/low output for flexible integration
  • Measures 0-4000 NTU turbidity with
  • Comprehensive tutorials available on DFRobot website
  • Submerge only the small round probe head; top is not waterproof

Target Platforms

The LORDWORLD turbidity sensor is an analog development board that connects to Arduino, ESP32, STM32 or Raspberry Pi boards through an ADC input. It measures water cloudiness from 0 to 4000 NTU and delivers a reading in under 500 ms.

Use-Case Fit

Makers building portable water-quality loggers, environmental monitoring stations or lab test rigs will find the dual analog and digital outputs convenient. Projects that require a fully submersible probe or a waterproof connector should look elsewhere because the probe head is not sealed.

Deciding Specification

The single figure that determines suitability is the 0-4000 NTU measurement range combined with a sub-500 ms response time. If your application needs a wider turbidity span or faster sampling, this board will not meet the requirement.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 88% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

How do I wire the analog output to an Arduino or Raspberry Pi ADC, and what wiring mistake causes wrong readings?

Connect the signal pin to an analog input, VCC to the supply voltage, and GND to ground; the common error is leaving the ADC reference unmatched to the supply so the 0-4.5 V span reads incorrectly.

What part will need cleaning or replacement after long-term use in wastewater or river water?

The small round sensing head fouls with sediment and bio-film; wipe it gently or replace the probe module when calibration no longer restores accurate 0-4000 NTU readings.

At what turbidity level does the sensor saturate and stop distinguishing higher values during continuous monitoring?

The output reaches full scale at 4000 NTU, so any water cloudier than that reads the same maximum voltage and cannot be resolved further.

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