YSI ProDSS Total Algae Sensor

The YSI ProDSS total algae sensor is a digital smart sensor for helping monitor, mitigate, and manage the impacts of harmful algal blooms.

Features

  • Dual channel sensor
  • Measures and outputs both chlorophyll & blue-green algae
  • Options for ug/L and RFU outputs
List Price $3,683.75
$3,499.56
Stock Check Availability  

The Total Algae (TAL) sensors are dual-channel fluorescence sensors. The “channels” are for chlorophyll and phycocyanin (TAL-PC), or chlorophyll and phycoerythrin (TAL-PE), which are measured in the water. Each sensor thus yields two data sets: for TAL-PC, one results from a blue-emitting LED that excites the chlorophyll a (chl) molecule and the second results from an orange excitation beam that excites the phycocyanin (PC) accessory pigment. The TAL-PE sensor is similar, also having the chlorophyll channel, but rather than an orange-emitting LED there is a slightly blue-shifted beam that excites phycoerythrin (PE).

The TAL sensors generate data in RFU or μg/L of pigment (chl, PC or PE) units, with RFU as the default. When using either RFU or μg/L, the sensor’s response is highly linear: a reading of 50 of either unit represents twice as much fluorescence detected as a reading of 25, for example, if the temperature is constant.

ProDSS Smart Sensor Specifications:

Parameter
Range Accuracy* Resolution

Conductivity

0 to 200 mS/cm

From 100 to 200 mS/cm: ± 1% 

**0.001, 0.01 or 0.1 µS/cm

Temperature

-5 to 70 °C

± 0.2 °C 

0.1 °C or 0.1 °F

Dissolved Oxygen

0 to 50 mg/L

From 0 to 20 mg/L: ± 1% 

From 20 to 50 mg/L: ± 8%

0.01 mg/L or 0.1 mg/L 

pH

0 to 14

± 0.2 

0.01

ORP

-1999 to 1999 mV

± 20 mV

0.1 mV

Turbidity

0 to 4000 FNU

From 0 to 999 FNU: ± 2%

From 1000 to 4000 FNU: ± 5%

0.1 FNU

Freshwater Total Algae

0 to 100 µg/L PC

r2 = 0.999

0.01 µg/L PC

Saltwater Total Algae

0 to 280 µg/L PE

r2 = 0.999

0.01 µg/L PE

Nitrate

0 to 200 mg/L

± 10%

0.01 mg/L

Ammonium

0 to 200 mg/L 

± 10%

0.01 mg/L

Chloride

0 to 1000 mg/L Cl

± 15%

0.01 mg/L


*Reference specification for each sensor for more details on accuracy
** Range dependent

Questions & Answers
Does this sensor require temperature compensation?
Yes. The YSI ProDSS Total Algae Sensor needs to have a temperature sensor installed along with it for accurate readings.
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YSI ProDSS Total Algae Sensor
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ProDSS freshwater total algae sensor (chlorophyll & phycocyanin)
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