6431AF Anti-Fouling Blue-Green Algae Sensor

6-Series Legacy Sondes

View YSI 6-Series water quality sondes being used in a variety of water environments for long-term underwater monitoring and spot sampling.

PriceRequest Pricing

SKU616431


The YSI 6431AF blue-green algae sensor monitors algal populations at natural levels in freshwater, providing an early warning for bloom conditions.

This sensor must be installed into a 6-Series sonde to function. Does not function on its own.

  • Overview

    Copper-based parts on the YSI 6431AF Blue-Green Algae Sensor repel aquatic growth on sensors, extending deployment periods.

    Blue-green algae (a. k. a. cyanobacteria) monitoring is of growing interest due to the problems some species can present through the production of toxins and compounds that deteriorate the quality of drinking water and through the formation of blooms. Blue-green algae are of interest for ecosystem studies and monitoring as well, where they may represent the most abundant primary producer.

    Features include:

    • Designed for freshwater (phycocyanin) environments
    • Optimized for excellent sensitivity for monitoring algal populations at natural levels
    • Insensitive to potential interference including chlorophyll, turbidity, and dissolved organics

    The YSI 6431AF blue-green algae sensor is fully compatible with all YSI 6-series sondes equipped with optical ports.

    YSI's optical sensors use an integrated wiping system to provide anti-fouling in the most hostile environments. Durable mechanical features include a non-corroding titanium wiper shaft, replaceable wiper shaft seal, and a new switch controlled wiper parking system to prevent mis-parking.

    Notable Specifications:

    • Range: ~0 to 280,000 cells/mL; 0 to 100 RFU
    • Detection Limit: ~220 cells/mL
    • Resolution: 1 cell/mL; 0.1 RFU
    • Linearity: R2> 0.9999

  • Specifications
    Anti Fouling Yes
    Depth / Pressure Rating / Limit 200 m
    Equipment used with 6600, ADV6600, 600OMS, 6920, 6600V2, 6820, 6920V2, 6820V2
    Medium

    Freshwater

    Monitoring Yes
    Parameters Measured

    Blue-Green Algae (phycocyanin)

    User Calibratable Yes
    User Replaceable Yes
    Warranty

    2 years

You may also need

6920 V2-2 Multi-Parameter Water Quality Sonde

Compact Sonde for Unattended Monitoring

Request Pricing

6820 V2-2 Multi-Parameter Water Quality Sonde

Compact Sonde for Field Sampling (no internal batteries)

Request Pricing

600OMS V2 Optical Monitoring Sonde

Low-Cost Environmental Monitoring Sonde

Request Pricing

6144 Optical Wiper Pad Kit

20 pack of wiper pad strips

Request Pricing