YSI EXO Total Algae Sensor
Features
- Dual channel sensor
- Measures and outputs both chlorophyll & blue-green algae
- Options for ug/L and RFU outputs
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 599102-01 | EXO freshwater total algae sensor (chlorophyll & phycocyanin) | Request Quote | Usually ships in 3-5 days | ||
 | 599103-01 | EXO saltwater total algae sensor (chlorophyll & phycoerythrin) | Request Quote | Usually ships in 3-5 days | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | FNRH125-P | 125 mg/L Rhodamine WT solution, 500mL bottle | $34.00 | In Stock | ||
 | 106023-01P | FWT 25 Rhodamine WT dye, 2.5% active ingredient, 1 pint | $29.95 | In Stock | ||
The YSI EXO series sondes utilize TAL-PC (total algae – phycocyanin) sensors in freshwater systems which detects chlorophyll and phycocyanin.
The total algae sensor reads chlorophyll and either phycocyanin or phycoetherin at the same time. Both chlorophyll and blue-green algae parameters have proved useful in monitoring for harmful algae blooms, so YSI decided to integrate both parameters onto the same probe.
There are a few different options for calibrating this sensor which are outlined in this guide: https://www.fondriest.com/pdf/ysi_exo_ta_manual.pdf
The EXO total algae sensor has two excitation beams. The first one (470 nm) directly excites the chlorophyll a molecule while the second one (590 nm) excites the phycocyanin accessory pigment found in blue-green algae. The sensor generates and outputs two independent data sets.
The total algae sensor is two sensors in one, which gives you more space for other parameters. It is also less sensitive to common interferences, has a faster response time, and a deeper depth rating.
The depth range is 250m for the EXO total algae sensor.
A base solution (the first dilution) will last a couple of months. The second dilution should only be used for a couple of days.
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