EXO2 Multiparameter Sonde

EXO - State-of-the-art Water Quality Monitoring Platform

EXO, a state-of-the-art water quality monitoring platform, is designed to address the many challenges of collecting accurate field data in the natural environment. In this video you will learn about the EXO sondes and EXO's innovative features, including: Universal smart sensors; Expansive and high-performance sensor suite; and Extremely rugged design for deeper depths and longer deployments.

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SKU599502-00

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7-Port Multiparameter Water Quality Sonde

Instrument Only. Cables, probes/sensors, and accessories sold separately.

Overview

The EXO advanced water quality monitoring platform includes the versatile multiparameter EXO2 sonde for oceanographic, estuarine, or surface water applications.

Key Benefits
• High-accuracy sensors with on-board memory
• Wireless communications
• Seamless integration into marine, estuarine, freshwater and ground water monitoring systems

Smart Sondes and Sensors
Extremely versatile instrument, allowing the user to automatically configure a sonde with different sensor for different applications in minutes

Accuracy
Tested in a variety of rigorous field conditions as well as lab conditions to ensure accuracy and response times

Monitor without Interruption
No matter which EXO sensors users select, other features of the sensors' design make them rugged and durable:

• Wet-mateable connectors resist corrosion
• Isolated components prevent short circuits
• Welded housings and double o-rings prevent leaks
• High-impact plastic and titanium resists breaking
• Built-in antifouling systems protect data integrity
• Low power consumption extends underwater deployments

If you're interested in our sonde with 4-ports for fewer water quality monitoring capabilities, visit our EXO1 sonde or, if you're interested in our sonde with 5-ports, visit the EXO3 sonde.

Add an EXO Factory Service Plan to your next sonde purchase and have the peace of mind that your new instrument is covered. Use today’s budget to protect your investment for years to come!

The EXO sondes are a key component of a complete, unattended long-term water quality monitoring system from our Integrated Systems & Services group.

Learning a new water quality platform can be a challenging process. Accelerate through the learning curve with our on-demand training program. Join us at YSI University!

Specifications

Anti Fouling	Central Wiper
Depth / Pressure Rating / Limit	0 to 250 m (0 to 820 ft)
Desktop Software Compatible	Yes
Flow Cell	Yes
Languages	German, English, French, Japanese, Chinese, Spanish
Logging Capabilities	Yes
Medium	Fresh, sea or polluted water
Memory	>1,000,000 logged readings, 512 MB total memory
Monitoring	Yes
Multiparameter	Yes
Operating Temperature	-5 to +50°C
Power	4 Alkaline Batteries
Sampling	Yes
Smart Sensors / Ports	Yes
Storage Temperature	-20 to +80°C
Unit of Measure	Parameter Dependent
User Calibratable	Yes
Waterproof	Yes

EXO2 Specifications
Battery Life	90 days*
Communications	Computer Interface: Bluetooth wireless technology (between sonde and handheld or computer with KOR software), USB Output Options: USB with signal output adapter (SOA); RS-232 & SDI-12 with DCP-SOA.
Diameter	7.62 cm (3.00 in)
Length	71.10 cm (28.00 in)
Peripheral Ports	1 power communication port; 1 auxiliary port for third-party sensors (future functionality; not active yet)
Sample Rate	Up to 4 Hz
Sensor Ports	7 (6 ports available when central wiper used)
Warranty: 3 mos	Replaceable reagent modules for ammonium, chloride, and nitrate
Warranty: 1 yr	Optical DO membranes and replaceable reagent modules for pH and pH/ORP
Warranty: 2 yrs	Cables; sonde bulkheads; handheld; conductivity, temperature, depth, and optical sensors; electronics base for pH, pH/ORP, ammonium, chloride, and nitrate sensors; and accessories
Weight	3.60 kg (7.90 lbs)

*Typically 90 days at 20˚C at 15-minute logging interval; temperature/conductivity, pH/ORP, DO, total algae, and turbidity sensors installed with central wiper that rotates once per logging interval on EXO2. Battery life is heavily dependent on sensor configuration.

EXO Parameter Measured	Sensor**	Range	Accuracy	Response	Resolution
Ammonium (freshwater only)	Ammonium Sensor Ammonia with pH sensor SKU: 599710	0 to 200 mg/L (0 to 30˚C)	±10% of reading or 2 mg/L-N, w.i.g.	T63<30 sec	0.01 mg/L
Barometric Pressure	Integral Barometer	375 to 825 mmHg	±1.5 mmHg from 0 to 50°C	-	0.1 mmHg
Blue-green Algae, Phycocyanin	Total Algae Sensor SKU: 599102-01	0 to 100 μg/L; 0 to 100 RFU;	Linearity: R² >0.999 for serial dilution of Rhodamine WT solution from 0 to 100 μg/mL BGA-PC equivalents	T63<2 sec	0.01 μg/L; 0.01 RFU
Blue-green Algae, Phycoerythrin	Total Algae Sensor SKU: 599103-01	0 to 280 μg/L; 0 to 100 RFU;	Linearity: R² >0.999 for serial dilution of Rhodamine WT solution from 0 to 280 μg/mL BGA-PE equivalents	T63<2 sec	0.01 μg/L; 0.01 RFU
Chloride (freshwater only)	Chloride Sensor SKU: 599711	0 to 18000 mg/L-Cl (0 to 30˚C)	±15% of reading or 5 mg/L-Cl, w.i.g.	T63<30 sec	0.01 mg/L
Chlorophyll	Total Algae Sensor SKU: 599102-01, 599103-01	0 to 400 μg/L Chl; 0 to 100 RFU	Linearity: R² >0.999 for serial dilution of Rhodamine WT solution from 0 to 400 μg/L Chl a equivalents	T63<2 sec	0.01 μg/L Chl; 0.01 RFU
Conductivity¹	Conductivity / Temperature Sensor SKU: 599870	0 to 200 mS/cm	0 to 100: ±0.5% of reading or 0.001 mS/cm, w.i.g.; 100 to 200: ±1% of reading	T63<2 sec	0.0001 to 0.01 mS/cm (range dependent)
Depth - 10 m	Integral, Non-vented Depth Sensor³	0 to 10 m (0 to 33 ft)	±0.04% FS (±0.004 m or ±0.013 ft)	T63<2 sec	0.001 m (0.001 ft) (auto-ranging)
Depth - 100 m	Integral, Non-vented Depth Sensor³	0 to 100 m (0 to 328 ft)	±0.04% FS (±0.04 m or ±0.13 ft)	T63<2 sec	0.001 m (0.001 ft) (auto-ranging)
Depth - 250 m	Integral, Non-vented Depth Sensor³	0 to 250 m (0 to 820 ft)	±0.04% FS (±0.10 m or ±0.33 ft)	T63<2 sec	0.001 m (0.001 ft) (auto-ranging)
Dissolved Oxygen, % air saturation	Optical Dissolved Oxygen Sensor SKU: 599100-01	0 to 500% air saturation	0 to 200%: ±1% of reading or 1% saturation, w.i.g.; 200 to 500%: ±5% of reading ⁴	T63<5 sec⁵	0.1% air saturation
Dissolved Oxygen, mg/L	Optical Dissolved Oxygen Sensor SKU: 599100-01	0 to 50 mg/L	0 to 20 mg/L: ±0.1 mg/L or 1% of reading, w.i.g.; 20 to 50 mg/L: ±5% of reading ⁴	T63<5 sec⁵	0.01 mg/L
fDOM (CDOM)	fDOM Sensor SKU: 599104-01	0 to 300 ppb Quinine Sulfate equivalents (QSU)	Linearity: R2 > 0.999 for serial dilution of 300 ppb QS solution Detection Limit: 0.07 ppb QSU	T63<2 sec	0.01 ppb QSU
Level, Vented - 10 m	Integral Vented Level Sensor	0 to 10 m (0 to 33 ft)	±0.03% FS (±0.003 m or ±0.010 ft)	T63<2 sec	0.001 m (0.001 ft)
Nitrate (freshwater only)	Nitrate Sensor SKU: 599709	0 to 200 mg/L-N (0 to 30˚C)	±10% of reading or 2 mg/L-N, w.i.g.	T63<30 sec	0.01 mg/L
pH	pH Sensor SKU:599701 guarded, 599702 unguarded pH/ORP Sensor SKU:599705 guarded, 599706 unguarded	0 to 14 units	±0.1 pH units within ±10˚C of calibration temp; ±0.2 pH units for entire temp range⁷	T63<3 sec⁸	0.01 units
ORP	pH/ORP Sensor SKU:599705 guarded, 599706 unguarded	-999 to 999 mV	±20 mV in Redox standard solution	T63<5 sec⁶	0.1 mV
Temperature	Conductivity / Temperature Sensor SKU: 599870	-5 to 35°C 35 to 50°C	±0.01°C² ±0.05°C²	T63<1 sec	0.001 °C
Turbidity⁹	Turbidity Sensor SKU: 599101-01	0 to 4000 FNU	0 to 999 FNU: 0.3 FNU or ±2% of reading, w.i.g.; 1000 to 4000 FNU: ±5% of reading¹⁰	T63<2 sec	0 to 999 FNU = 0.01 FNU; 1000 to 4000 FNU = 0.1 FNU
Salinity	Calculated from Conductivity and Temperature¹¹	0 to 70 ppt	±1.0% of reading or 0.1 ppt, w.i.g.	T63<2 sec	0.01 ppt
Specific Conductance	Calculated from Conductivity and Temperature¹¹	0 to 200 mS/cm	±0.5% of reading or .001 mS/cm, w.i.g.	-	0.001, 0.01, 0.1 mS/cm (auto-scaling)
Total Dissolved Solids (TDS)	Calculated from Conductivity and Temperature¹¹	0 to 100,000 mg/L Cal constant range 0.30 to 1.00 (0.64 default)	Not Specified	-	Variable
Total Suspended Solids (TSS)	Calculated from Turbidity and user reference samples	0 to 1500 mg/L	Not specified	T63<2 sec	Variable

**Specifications indicate typical performance and are subject to change. All sensors have a depth rating to 250 m (820 ft), except shallow and medium depth sensors, ammonium, chloride, and nitrate. Accuracy specification is attained immediately following calibration under controlled and stable environmental conditions. Performance in the natural environment may vary from quoted specification.
w.i.g. = whichever is greater

EXO sensors are not compatible with YSI 6-Series sondes, sensors, or handheld.

¹Outputs of specific conductance (conductivity corrected to 25˚C) and total dissolved solids are also provided. See Calculated Parameters and footnote 11.
² Temperature accuracy traceable to NIST standards
³Accuracy specifications apply to conductivity levels of 0 to 100,000 μS/cm.
⁴ Relative to calibration gases
⁵ When transferred from air-saturated water to stirred deaerated water
⁶ When transferred from water-saturated air to Zobell solution
⁷Within the environmental pH range of pH 4 to pH 10.
⁸On transfer from water-saturated air to rapidly stirred air-saturated water at a specific conductance of 800 μS/cm at 20˚C; T63<5 seconds on transfer from water-saturated air to slowly-stirred air-saturated water.
⁹ Calibration: 1-, 2-, or 3-point, user-selectable
¹⁰ Performance based on 3-point calibration done with YSI AMCO-AEPA standards of 0, 124, and 1010 FNU. The same type of standard must be used for all calibration points.
¹¹ Values are automatically calculated from conductivity according to algorithms found in Standard Methods for the Examination of Water and Wastewater (Ed. 1989).

Xenoy is a trademark of SABIC Innovative Plastics IP BV.

EXO Bluetooth modules comply with Part 15C of FCC Rules and have FCC, CE Mark and C-tick approval. Bluetooth-type approvals and regulations can be country specific. Check local laws and regulations to insure that the use of wireless products purchased from Xylem are in full compliance.

Accessories

EXO Ammonium Smart Sensor

Shallow Freshwater Only

EXO Wiped Conductivity & Temperature Sensor

Better conductivity measurements for the EXO2 platform.

EXO Nitrate Smart Sensor

Shallow Freshwater Only

EXO Conductivity & Temperature Smart Sensor

EXO Optical Dissolved Oxygen Smart Sensor

Optical Sensor

EXO pH & ORP Smart Sensor

Unguarded

EXO pH & ORP Smart Sensor

Guarded

EXO Turbidity Smart Sensor

Optical Sensor

EXO Total Algae PC Smart Sensor

Phycocyanin - Freshwater

EXO pH Smart Sensor

Guarded

EXO pH Smart Sensor

Unguarded

EXO Total Algae PE Smart Sensor

Phycoerythrin - Saltwater

EXO Chloride Smart Sensor

Shallow Freshwater Only

EXO fDOM Smart Sensor

Fluorescent Dissolved Organic Matter

EXO Central Wiper

Anti-fouling Wiper for the EXO2 and EXO3 Platforms

EXO Field Cable

EXO Flying Lead Cable

EXO Vented Flying Lead Cable

EXO Handheld Display

Enhanced interface for the EXO platform.

KorEXO Software - USB

EXO DCP Signal Output Adapter 2.0

For integrating a data logger and telemetry system with an EXO sonde.

EXO Modbus Signal Output Adapter

For integrating an EXO Sonde into a SCADA system.

Turbidity Standard

Turbidity Standard

pH Buffer

pH Buffer

Conductivity Calibrator Solution

Conductivity Calibrator Solution

EXO2 Central Wiper Brush Kit

Replacement Wiper

Dessicant Canister Kit

EXO2 Wiper Retaining Nut Kit, Titanium

Replacement EXO2 wiper retaining nuts

EXO2 / EXO3 Sonde Weight Kit

Profiling Accessory

EXO2 / EXO3 Replacement O-Ring Kit

EXO2 Replacement 6-Pin Dummy Plug Kit, Male

EXO2 / EXO3 Hard Sided Wheeled Carrying Case

EXO2 / EXO3 Guard Assembly Kit

EXO2 / EXO3 Probe Guard

EXO2 / EXO3 Flow Cell

EXO2 Coastal Anode Guard Weight Kit

EXO2 / EXO3 Calibration and Storage Cup

Replacement Cup

EXO2 / EXO3 Anti-Fouling Guard

Copper-alloy guard

EXO Wiper Brush Guard Replacement Kit

Replacement guards for EXO2 central wiper

EXO Tool Kit

Replacement Tool Kit

EXO Signal Output Adapter - USB

EXO Sensor Retaining Nut Kit, Titanium

Replacement sensor retaining nuts

EXO Replacement Sensor Tool & Magnet Kit

Replacement Tools

EXO Replacement 6-Pin Dummy Plug Kit, Female

EXO Rechargeable Lithium-Ion Battery

For Classic EXO Handheld Display

EXO Probe and Sonde Protective Sleeves

Anti-fouling sleeves

EXO pH Sensor Replacement Module

Un-Guarded pH Module

EXO pH Sensor Replacement Module

Guarded pH Module

EXO pH & ORP Sensor Replacement Module

Guarded pH/ORP Module

EXO pH & ORP Sensor Replacement Module

Un-Guarded pH/ORP Module

EXO Nitrate Sensor Replacement Module

Shallow Freshwater Only

EXO Dissolved Oxygen Sensor Cap Replacement Kit

Replaceable DO Sensor Cap

EXO Conductivity & Temperature Sensor Cleaning Brush

Flow Cell Brush

EXO Coastal Zinc Anode Kit

Optional Anti-Fouling Accessory for EXO2

EXO Chloride Sensor Replacement Module

Shallow Freshwater Only

EXO Cable Couplers

Brass or Titanium

EXO Anti-fouling C/T Screen

Copper probe screen

EXO Ammonium Sensor Replacement Module

Shallow Freshwater Only

EXO 4-Pin Bulkhead Connector Port Plug

EXO Wiped (C/T) Sensor, Spacing Kit

Maintenance kit for EXO Wiped (C/T) sensor

EXO2 / EXO3 Replacement Bail
Status

This is a planned maintenance.

HydroSphere is expected to be back online by 01/04/2020.
Video

EXO Multiparameter Sondes

EXO advanced water quality monitoring platform for continuous field water quality measurements in challenging conditions.

EXO Sondes: What's in the Box When it Arrives?

In this unboxing video, Tim Finegan, YSI, shows you exactly what ships with every order of an EXO water quality monitoring sonde.

KOR: Introduction to Software for the EXO monitoring platform

A tour of the main menus and features of the graphical KOR software for the EXO water monitoring platform. Connect an EXO sonde to your computer wirelessly with Bluetooth technology. The Dashboard shows real-time data. Calibration menus quickly guide you through the calibration process and provide SmartQC verification of successful calibration and worksheets.

EXO-University.com | On-demand Sonde Training

Learning a new water quality platform can be a challenging process. Accelerate through the learning curve with EXO University!
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