Precision Instruments for
Tough Environmental Conditions
Ocean and coastal water quality monitoring applications require instrumentation that will survive in harsh environments. YSI’s analytical monitoring sensors are designed to meet stringent data accuracy requirements and have been proven during long term deployments. Features like wet mate connectors and titanium sensor housing result in higher data quality by eliminating many of the failure modes common in these challenging conditions.
Rugged design – A float section, battery section, and navaid section form an abrasion-resistant, shock absorbing buoy that can survive knocks form debris and even boat collisions. The float section has a moulded in slip resistant surface, providing an added safety precaution for on station maintenance.
Safety – The float section has a moulded-in, slip-resistant surface that makes it safer to do maintenance on station.
Color-code your station – Bifurcation buoys of red or green; Cardinal buoys of yellow and black; Fairway or Safe Water buoys of red and white. All are possible with this customizable buoy.
Flexible Power – Configured for 12V or 24V nominal, the power system for the lantern and optional equipment is housed in the battery section, which also forms part of the tower for the lantern.
Navaid Section – Has provision for four 10 peak watt solar modules or up to three 20 peak and one ten peak watt solar modules. This section also includes an internal high gain passive reflector (10m²) and lantern guard (if needed). Access to battery section and all equipment is through a hinged, tamper resistant, watertight service hatch.
EXO2 Multiparameter Sonde
Highest Data Quality
Onboard monitoring systems verify sensor operation
7 universal ports for allow for any combination of smart sensors or the central wiper
Best-in-class wiper technology
The toughest grade parts guarantee operation well into the future
EXO can plug-and-play into marine, estuarine, freshwater, and groundwater monitoring systems
- Battery compartment & large memory for long-term, unattended deployments
- All sensors are field-replaceable and hold their own calibration
- Compatible with real-time data logging systems
Smart Sondes and Sensors
EXO is an extremely versatile instrument for unattended monitoring, allowing the user to automatically configure a sonde with different sensors for different applications in minutes.
Smart Sensor Options
• Conductivity/Temperature (wiped and non-wiped)
• Dissolved Oxygen
• ISEs (Ammonium, Chloride, and Nitrate)
• NitraLED (UV Nitrate)
• pH (guarded and unguarded)
• pH & ORP (guarded and unguarded)
• Total Algae (Chlorophyll + Phycocyanin and Phycoerythrin)
Other Available Parameters
• Absolute Pressure
• DO% Local
• Guage Pressure
• nLF Conductivity
• Specific Conductivity
• Total Dissolved Solids
• Total Suspended Solids
• Water Density
EXO sondes and sensors are 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 smart sensor 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 anti-fouling systems protect data integrity
• Low power consumption extends underwater deployments