YSI EXO Central Wiper

The YSI EXO Central Wiper occupies the central port on an EXO2 or EXO3 sonde, and is used to keep the payload sensor faces clean during long-term deployments.


  • Keeps the payload sensor faces clean using mechanical brush
  • Prolongs deployments and improves data accuracy
  • For use with EXO2 and EXO3 platforms only

The EXO Central Wiper occupies the central port on an EXO2 or EXO3 sonde, and is used to keep the payload sensor faces clean during long-term deployments. There's no escaping biofouling in underwater measurements. To keep it from interfering with data, an EXO2 or EXO3 sonde can be equipped with this anti-fouling wiper to prolong deployments and improve data accuracy.

Cost and Time Efficient

  • Save money by reducing the number of site visits each year. 
  • Lower the cleaning & maintenance requirements for conductivity sensors
  • Spend less time with anti-fouling screens and removing the build-up of hard growth
  • Reduce the need for post-processing data and  manually adjusting for fouling-related sensor drift


  • Improve reliability with non-metallic electrodes
  • Avoid stagnant readings and reduce the impact of micro-environments
  • Prevent particulates, algae, barnacles, and trapped gasses from impacting data
Questions & Answers
Can the wiper be installed in any port on the sonde?
The wiper can only be installed in the center port of the bulkhead. A sensor can be installed in place of the wiper but not the other way around.
How often does the wiper need replaced?
The wiper needs replaced when it has been worn or the brush begins to show splay. Actual wiper life varies from one deployment to another, but you can generally expect to get at least a year of use from a single brush.
Can the EXO central wiper be used with all EXO data sondes?
No, the EXO central wiper can only be used with the EXO 2 and EXO 3 sondes.
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