Low Range Optical Turbidity Sensor for Clean Water

Overview

The Low Range Optical Turbidity Sensor for Clean Water is specifically designed for precise turbidity measurement in low-turbidity environments such as drinking water, purified water, or surface water. This sensor uses advanced optical detection methods to achieve high accuracy and resolution, even at extremely low NTU levels. Ideal for clean water treatment facilities, laboratories, and industrial water applications, this sensor supports continuous online monitoring with stable output and long-term reliability.?

What Is a Low Range Optical Turbidity Sensor?

A Low Range Optical Turbidity Sensor is a non-contact sensor that utilizes light scattering technology to quantify the amount of suspended solids in clear water. Unlike high-range sensors designed for wastewater or industrial effluent, low range models are optimized to detect minute variations in turbidity from 0.01 NTU to 20 NTU, making them suitable for clean water scenarios that require strict quality control and regulatory compliance.?

Measurement Principle

This type of sensor typically operates on the 660 nm laser scattering principle. A narrow-beam laser is directed into the water sample. Suspended particles cause light to scatter, and a photodetector positioned at a 90° angle captures the scattered light intensity. The system then calculates the turbidity level based on the scattering pattern, achieving high sensitivity with minimal influence from water color or ambient light.?

The use of laser light provides a coherent and stable signal, significantly improving performance in ultra-low turbidity applications compared to traditional infrared sensors. This enables accurate detection in drinking water treatment plants, ultrapure water systems, and environmental monitoring stations.?

Typical Applications

• Municipal drinking water treatment facilities
• Ultrapure water monitoring in semiconductor and pharmaceutical industries
• Surface water and groundwater quality assessment
• Membrane filtration system performance validation
• Clean water discharge monitoring from industrial processes

Key Features and Advantages

• Optimized for low turbidity ranges (0.01–20 NTU)
• High sensitivity laser optics with fast response time
• Digital output via RS485 Modbus or analog 4-20mA
• Compact design for easy integration into water analysis systems
• Stable signal unaffected by color or ambient light
• Maintenance-friendly with optional automatic cleaning system

Why Choose Daruifuno?

Daruifuno specializes in precision water quality sensors, offering reliable and scalable solutions for various industries. Our Low Range Optical Turbidity Sensor features advanced laser scattering technology, customizable range options, and robust electronic design for long-term field deployment. We support OEM and branding customization, ensuring seamless integration into your product line or system infrastructure.?

Our sensors are cost-effective, factory-calibrated, and engineered to deliver consistent results in mission-critical applications.?

Conclusion

If you are working with clean water systems and require precise turbidity measurement in the low NTU range, the Daruifuno Low Range Optical Turbidity Sensor is your ideal solution. Combining laser accuracy with durable construction, it helps you ensure water quality, meet regulatory standards, and optimize system performance.?

Looking for more turbidity sensing solutions? Visit our main category to explore all available models: Optical Turbidity Sensor.?