YSI EXO3s Multi-Parameter Water Quality Sonde

The YSI EXO3s is a compact, batteryless sonde that comes with the same capabilities as the EXO3, and is ideal for specialized applications where external power is supplied.

Features

  • Ideal for spot sampling or attachment to data buoys, AUV's, drones, etc.
  • Smaller, lighter sondes can be deployed in tight spaces
  • A more budget-friendly EXO without alkaline batteries
Your Price Call
Stock Check Availability  

Overview
The YSI EXO3s represents an advanced sonde platform that offers a wide range of capabilities to those dedicated to monitoring natural aquatic environments such as oceans, estuaries, rivers, lakes, and groundwater. With a highly efficient power management platform, robust construction and chemistry-free anti-fouling system, EXO allows accurate data collection for up to 90 days between service intervals.

Multi-Port Water Quality Sonde
The EXO3 sonde includes four sensor ports and a central anti-fouling wiper option. Sensor (not included with sonde purchase) parameters include:

  • Temperature
  • Conductivity
  • Depth
  • Dissolved oxygen
  • pH
  • ORP
  • Total algae (phycocyanin or phycoerythrin along with chlorophyll)
  • Turbidity
  • Fluorescent dissolved organic matter (fDOM)
  • Rhodamine WT
  • UV nitrate
  • ISE ammonium
  • ISE nitrate
  • ISE chloride

Outputs Four Calculated Parameters

  • Salinity
  • Specific conductance
  • Total dissolved solids (TDS)
  • Total suspended solids (TSS)

Onboard Signal Processing and Memory
All EXO sensors are digital sensors with onboard signal processing and memory. Built-in sensor diagnostic and calibration data allow users to calibrate multiple sensors in one sonde and distribute them to various other sondes in the field. Wet-mateable connectors allow for swaps in wet conditions, while active port monitoring automatically detects each sensor and verifies operation.

EXO3s Specifications
Diameter: 7.62cm (3.00 in)
Length (with guard): 42.87cm (16.88 in)
Peripheral Ports: 1 power communication port
Sensor Ports: 5 (4 ports available when central wiper used)
3-Year Warranty: Sonde; handheld
2-Year Warranty: Cables; conductivity/temperature and optical sensors; electronics base for pH, pH/ORP, ammonium, chloride, and nitrate sensors
1-Year Warranty: Optical DO cap and replaceable reagent modules for pH and pH/ORP sensors
3-Month Warranty: Replaceable reagent modules for ammonium, chloride, and nitrate sensors
Weight: 1.06kg (2.34 lbs)

General Sonde Specifications
Power Requirement: 9-16 VDC
Computer Interface
: YSIP via USB Signal Output Adapter (SOA) and Bluetooth
Output Options: SDI-12 native output; RS-232 & SDI-12 via DCP-SOA; Modbus & RS-485 via Modbus-SOA
Data Memory: 512 MB total memory; >1,000,000 Logged readings
Depth Rating: 0 to 250m (0 to 820 ft)
Sample Rate: Up to 4 Hz
Operating Temperature: -5 to +50°C (23 to 122°F)
Storage Temperature: -20 to +80°C (-4 to 176°F)

  • (1) EXO3s sonde
  • (1) Probe guard
  • (1) Calibration cup
  • (1) Tool kit
  • (3) Port plugs
  • (1) USB drive loaded with manual & Kor Software
Questions & Answers
Can this sonde be powered by the EXO Handheld Display?
Yes, the EXO Handheld Display can power any of the EXO sondes for up to 20 hours on a single charge.
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
YSI EXO3s Multi-Parameter Water Quality Sonde
577503-00
EXO3s batteryless multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, no depth sensor
Request Quote
Check Availability  
YSI EXO3s Multi-Parameter Water Quality Sonde
577503-01
EXO3s batteryless multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 10m depth sensor
Request Quote
Check Availability  
YSI EXO3s Multi-Parameter Water Quality Sonde
577503-02
EXO3s batteryless multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 100m depth sensor
Request Quote
Check Availability  
YSI EXO3s Multi-Parameter Water Quality Sonde
577503-03
EXO3s batteryless multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 250m depth sensor
Request Quote
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
×
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Going, Going, Gone: Endangered Species Recovery and Conservation

Across the planet, biodiversity and natural habitats are declining dramatically. Countless species of flora and fauna around the world are being listed as either threatened, endangered, or extinct. According to a 2019 UN Study , around one million species are already at risk of extinction. Unless action is taken to reduce the causes of biodiversity loss, many of these species could disappear within the next few decades. Invasive species, habitat destruction, pollution, and other environmental stressors are all major causes of biodiversity decline. While high biodiversity is synonymous with places like the Amazon Rainforest and the Great Barrier Reef, it can also be found locally.

Read More

CastAway Doubts about Conductivity, Depth and Temperature Monitoring

The Sontek CastAway-CTD is a castable device that measures conductivity, temperature and depth. The instrument has been used in the field for over a decade by oceanographers, limnologists, divers, fishers and educators. There have been few changes since the first iteration in 2010, showing that the instrument is durable and accurate without requiring new models.   The CastAway is the first conductivity, temperature and depth (CTD) instrument of its kind. While other CTDs are large and cumbersome to deploy, with cages and isolated sensors, the CastAway is a small, lightweight and easy-to-use instrument. Typical CTDs utilize pumps to ensure water flows over the sensors during deployment.

Read More

Dimethyl Sulfide: A Key to Marine Sulfur Biogeochemistry

Christopher Spiese is assistant dean at the Getty College of Arts & Sciences, acting director of the school of social sciences and human interaction, and associate professor of chemistry at Ohio Northern University. He is also a marine sulfur enthusiast. Marine sulfur biogeochemistry, which involves the cycling of sulfur through aquatic biological and geological systems, is essential for the functioning of marine life. However, the exact chemistry involved is not entirely known, piquing the interest of researchers like Spiese. “I went into marine sulfur biogeochemistry during my graduate work. I completed a doctoral environmental chemistry program at SUNY College of Environmental Science and Forestry (SUNY-ESF) under David Kieber.

Read More