DFRobot Gravity Analog Turbidity Sensor

The Gravity Analog Turbidity Sensor is designed to measure water quality by detecting turbidity levels caused by suspended particles. It operates by analyzing light transmittance and scattering to estimate total suspended solids (TSS) in liquids. The module provides both analog output (0–4.5V) and adjustable digital output for flexible integration with microcontrollers. Built for stable and reliable operation at 5V DC, it is suitable for laboratory testing, environmental monitoring, and wastewater analysis. Ideal for Arduino-based water quality projects and academic research applications. Features - Optical turbidity measurement using light scattering - Analog output 0–4.5V proportional to turbidity - Adjustable digital threshold output - 5V DC operating voltage - Low power consumption up to 40mA - Fast response time under 500ms - High insulation resistance ?100M? - Integrated signal conditioning module - Compatible with Arduino and 5V MCUs - Suitable for water quality and TSS estimation - Compact PCB adapter design - Wide operating temperature range 5–90°C Specifications - Operating Voltage: 5V DC - Operating Current: ?40mA - Output Type: Analog and Digital - Analog Output Range: 0–4.5V - Digital Output: High/Low level (adjustable threshold) - Response Time: <500ms - Insulation Resistance: ?100M? - Operating Temperature: 5–90°C - Storage Temperature: -10–90°C - Adapter Dimensions: 38 × 28 × 10 mm - Weight: 30 g - Compatibility: Arduino, 5V MCU platforms Links - Schematic - Probe_Dimension - Adapter_Dimension - Datasheet Tutorials DIY Turbidity Meter using Arduino & Analog Turbidity Sensor How To Use a Turbidity Sensor