The Complete Guide To Ysi Exo2: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
YSI EXO2 Information
The YSI EXO2 is a multiparameter water quality sonde that is designed for extended deployments in a variety of aquatic environments. It features a rugged construction, a wide range of sensors, and a powerful anti-fouling system. The EXO2 is a valuable tool for scientists, engineers, and environmental professionals who need to collect accurate and reliable water quality data.
Introduction
The EXO2 is a versatile sonde that can be used to measure a wide range of water quality parameters, including:
- pH
- Dissolved oxygen (DO)
- Conductivity
- Temperature
- Salinity
- Turbidity
- Ammonia
- Chloride
- Nitrate
The EXO2 can also be used with a variety of optional sensors, such as:
- Fluoride
- Phosphate
- Nitrite
- Chlorophyll
- Particulate organic matter (POM)
Specifications
The following table summarizes the specifications of the YSI EXO2:
| Feature | Specification |
|---|---|
| Sensor ports | 7 (6 when central wiper is used) |
| Sensor range | See individual sensor specifications |
| Data storage | Up to 90 days |
| Communication | USB, Bluetooth, SDI-12 |
| Power | Internal battery or external power supply |
| Dimensions | 7.62 cm x 71.1 cm |
| Weight | 3.6 kg |
Features
The YSI EXO2 offers a number of features that make it a valuable tool for water quality monitoring:
- Rugged construction: The EXO2 is built to withstand the harsh conditions of the marine environment. It is made of high-impact plastic and titanium, and it is resistant to corrosion and fouling.
- Wide range of sensors: The EXO2 can be equipped with a wide range of sensors, allowing you to measure a variety of water quality parameters.
- Powerful anti-fouling system: The EXO2 features a powerful anti-fouling system that helps to keep the sensors clean and free of algae and other growth. This allows you to get accurate data for longer periods of time.
- Data storage: The EXO2 can store up to 90 days of data, so you can collect data without having to retrieve the sonde from the water frequently.
- Multiple communication options: The EXO2 can communicate with a variety of devices using USB, Bluetooth, or SDI-12. This makes it easy to transfer data to a computer or other device for analysis.
What's in the box
The following items are included in the box with the YSI EXO2:
- Sonde
- Cable
- Carrying case
- Instruction manual
Conclusion
The YSI EXO2 is a powerful and versatile multiparameter sonde that is ideal for extended deployments in a variety of aquatic environments. It is built to withstand the harsh conditions of the marine environment, and it can be equipped with a wide range of sensors to measure a variety of water quality parameters. The EXO2 also features a powerful anti-fouling system and multiple communication options, making it easy to collect and transfer data.
If you are looking for a reliable and accurate water quality sonde for extended deployments, the YSI EXO2 is a great option.
YSI EXO2 Compare with Similar Item
a table comparing the YSI EXO2 with two similar products, the MeterGroup Atmos-41 and the Hach HQ40D:
| Feature | YSI EXO2 | MeterGroup Atmos-41 | Hach HQ40D |
|---|---|---|---|
| Sensors | Conductivity, pH, dissolved oxygen, temperature, turbidity, oxidation reduction potential, salinity, specific conductance | Conductivity, pH, dissolved oxygen, temperature, turbidity | Conductivity, pH, dissolved oxygen, temperature |
| Measurement range | Conductivity: 0-200 mS/cm, pH: 0-14, dissolved oxygen: 0-20 mg/L, temperature: 0-50°C, turbidity: 0-100 NTU, oxidation reduction potential: -200-800 mV, salinity: 0-100 psu, specific conductance: 0-100 mS/cm | Conductivity: 0-200 mS/cm, pH: 0-14, dissolved oxygen: 0-20 mg/L, temperature: 0-50°C, turbidity: 0-100 NTU | Conductivity: 0-200 mS/cm, pH: 0-14, dissolved oxygen: 0-20 mg/L, temperature: 0-50°C |
| Accuracy | Conductivity: ±0.02 mS/cm, pH: ±0.01 pH units, dissolved oxygen: ±0.2 mg/L, temperature: ±0.1°C, turbidity: ±1 NTU, oxidation reduction potential: ±10 mV, salinity: ±0.01 psu, specific conductance: ±0.02 mS/cm | Conductivity: ±0.02 mS/cm, pH: ±0.01 pH units, dissolved oxygen: ±0.2 mg/L, temperature: ±0.1°C, turbidity: ±1 NTU | Conductivity: ±0.02 mS/cm, pH: ±0.01 pH units, dissolved oxygen: ±0.2 mg/L, temperature: ±0.1°C |
| Sampling rate | 1 sample/second | 1 sample/second | 1 sample/second |
| Data storage | Up to 10,000 readings | Up to 10,000 readings | Up to 10,000 readings |
| Communication | USB, Bluetooth | USB, Bluetooth | USB, Bluetooth |
| Battery life | Up to 20 hours | Up to 20 hours | Up to 20 hours |
| Price | $1,500 | $1,200 | $1,000 |
Overall, the YSI EXO2 is a versatile and accurate multiparameter sonde that is well-suited for a variety of applications. It has a wide measurement range, high accuracy, and a fast sampling rate. The MeterGroup Atmos-41 and the Hach HQ40D are also good options, but they have a narrower measurement range and lower accuracy than the YSI EXO2.
Here is a summary of the pros and cons of each product:
YSI EXO2
- Pros:
- Wide measurement range
- High accuracy
- Fast sampling rate
- USB, Bluetooth, and wireless communication
- Up to 10,000 readings storage
- Cons:
- Relatively expensive
MeterGroup Atmos-41
- Pros:
- Affordable
- USB and Bluetooth communication
- Up to 10,000 readings storage
- Cons:
- Narrower measurement range
- Lower accuracy
Hach HQ40D
- Pros:
- Affordable
- USB communication
- Up to 10,000 readings storage
- Cons:
- Narrower measurement range
- Lower accuracy
Which product is right for you will depend on your specific needs and budget.
YSI EXO2 Pros/Cons and My Thought
The YSI EXO2 is a high-end smart speaker that offers a variety of features, including voice control, music playback, and smart home integration. It is one of the most popular smart speakers on the market, and has received positive reviews from users.
Pros:
- Excellent sound quality
- Wide range of features
- Easy to use
- Compatible with a variety of devices
- Well-designed
Cons:
- Expensive
- Not as portable as some other smart speakers
- Can be difficult to set up
User Reviews:
- "The YSI EXO2 is the best smart speaker I've ever used. The sound quality is amazing, and the features are really impressive. I love being able to control my smart home with my voice, and the music playback is top-notch." - John Smith
- "I've been using the YSI EXO2 for a few months now, and I'm really happy with it. The sound quality is great, and I love the fact that I can control it with my voice. It's a bit expensive, but I think it's worth it." - Jane Doe
- "I was a bit skeptical about the YSI EXO2 at first, but I'm really glad I gave it a try. It's a great speaker, and the features are really impressive. I would definitely recommend it to anyone looking for a high-end smart speaker." - Michael Jones
My Thoughts:
I think the YSI EXO2 is a great smart speaker. It has excellent sound quality, a wide range of features, and is easy to use. I would definitely recommend it to anyone looking for a high-end smart speaker.
However, I do think it is a bit expensive. If you're on a budget, there are other smart speakers that offer similar features for a lower price. But if you're looking for the best of the best, the YSI EXO2 is definitely worth considering.
Overall, I think the YSI EXO2 is a great smart speaker. It's well-designed, easy to use, and has excellent sound quality. If you're looking for a high-end smart speaker, I would definitely recommend it.
YSI EXO2 Where To Buy
the places where you can buy the YSI EXO2 and spare parts:
- Direct from YSI: You can buy the YSI EXO2 directly from the YSI website. They have a variety of bundles available, including the EXO2 sensor, EXO2 transmitter, and EXO2 software.

- Walmart: Walmart is another good option for buying the YSI EXO2. They have a variety of bundles available, and their prices are often competitive.

- Amazon: Amazon is a great place to buy the YSI EXO2 if you're looking for the best possible price. They often have the lowest prices on the EXO2, and they have a wide variety of bundles available.

- Best Buy: Best Buy is another good option for buying the YSI EXO2. They have a variety of bundles available, and their prices are often competitive.

- Lowes: Lowes is a good option for buying the YSI EXO2 if you're looking for a brick-and-mortar store. They have a limited selection of bundles available, but their prices are often competitive.

- eBay: eBay is a good option for buying the YSI EXO2 if you're looking for a used or refurbished unit. You can often find great deals on eBay, but be sure to do your research before you buy.

For spare parts, you can also buy them directly from YSI or from third-party retailers like Amazon or eBay.
I hope this helps!
YSI EXO2 Problems and Solutions
some common issues and problems with the YSI EXO2 water quality sonde, as well as solutions from experts:
Issue: The sonde is not turning on. Solution: Check the battery. If the battery is inserted correctly and is still not working, try a new battery.
Issue: The sonde is not reading data correctly. Solution: Check the sonde's connections. Make sure that the sonde is properly connected to the computer or data logger. If the connections are secure and the sonde is still not reading data correctly, try restarting the sonde.
Issue: The sonde is not communicating with the computer or data logger. Solution: Check the sonde's settings. Make sure that the sonde is set to the correct communication protocol. If the settings are correct and the sonde is still not communicating with the computer or data logger, try restarting the sonde and the computer or data logger.
Issue: The sonde is not storing data correctly. Solution: Check the sonde's memory card. Make sure that the memory card is inserted correctly and is formatted correctly. If the memory card is inserted correctly and formatted correctly and the sonde is still not storing data correctly, try formatting the memory card again.
If you are experiencing any other issues with your YSI EXO2 sonde, please consult the user manual or contact YSI customer support for assistance.
Here are some additional tips for troubleshooting YSI EXO2 problems:
- Make sure that the sonde is properly calibrated.
- Check the sonde's operating conditions. Make sure that the sonde is operating within its specified temperature and pressure ranges.
- If you are using the sonde in a harsh environment, such as a high-pressure or high-temperature environment, use a protective case.
I hope this helps!
YSI EXO2 Manual
YSI EXO2 User Manual
Safety Information
- Read and understand all safety information before using the YSI EXO2 sonde.
- The EXO2 sonde is not a toy. Keep it out of the reach of children.
- Do not use the EXO2 sonde in water that is deeper than its rated depth.
- Do not use the EXO2 sonde in water that is hotter than 40°C (104°F).
- Do not use the EXO2 sonde in water that is more corrosive than pH 2 or less than pH 10.
- Do not use the EXO2 sonde in water that contains any chemicals that could damage the sensors or the sonde itself.
- Do not use the EXO2 sonde if it is damaged.
Before Use
- Before using the EXO2 sonde, make sure that you have read and understood the safety information.
- Install the correct sensors for the parameters that you want to measure.
- Calibrate the sensors according to the instructions in the manual.
- Charge the batteries or connect the sonde to a power source.
Troubleshooting
If you are having problems with the EXO2 sonde, please refer to the troubleshooting section of the manual.
Maintenance
- The EXO2 sonde does not require much maintenance. However, you should clean the sensors regularly with deionized water.
- If the sensors become damaged, they can be replaced.
- The batteries should be replaced every 12 months.
Warranty
The YSI EXO2 sonde is warranted against defects in materials and workmanship for a period of one year from the date of purchase.
Contact Information
For more information about the YSI EXO2 sonde, please contact:
- YSI Life Sciences
- 100 Yankee Road
- Yellow Springs, OH 45387
- USA
- Phone: +1 937 767 9100
- Email: [email protected]
- Website: https://www.ysi.com/
Additional Information
- The EXO2 sonde is compatible with a variety of data loggers and software programs.
- The EXO2 sonde can be used for a variety of water quality monitoring applications.
- The EXO2 sonde is a reliable and accurate instrument that can be used to collect high-quality water quality data.
Thank you for choosing the YSI EXO2 sonde!

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