YSI EXO1s Multi-Parameter Water Quality Sonde

EXO1s is a compact, batteryless sonde that comes with the same capabilities as the EXO1, 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
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The YSI EXO represents the next generation of water quality instruments from YSI. The advanced sonde platform 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.

The EXO1s sonde includes four sensor ports with internal data logging. Sensor 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, and ISE chloride. The sonde can also output four calculated parameters including salinity, specific conductance, total dissolved solids (TDS) and total suspended solids (TSS).

All EXO sensors are digital sensors with on-board signal processing and memory. Built-in sensor diagnostic and calibration data allows users to calibrate multiple sensors in one sonde and distribute 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.

EXO1s Specifications
Diameter: 4.75cm (1.87 in)
Length (with guard): 44.77cm (17.63 in) without depth sensor; 46.41cm (18.27 in) with depth sensor
Peripheral Ports: 1 power communication port
Sensor Ports: 4
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: 0.48kg (1.06 lbs) without depth sensor; 0.56kg (1.24 lbs) with depth sensor

General Sonde Specifications
Power Requirement: 9-16 VDC
Computer Interface
: YSIP via USB Signal Output Adapter (SOA) and Bluetooth
Output Options: 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) EXO1s sonde
  • (1) Probe guard
  • (1) Calibration cup
  • (1) Tool kit
  • (2) 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.
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YSI EXO1s Multi-Parameter Water Quality Sonde
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