This silicone based lubricant helps ensure a watertight seal on YSI water quality instruments and sensors.
Includes one 0.5 oz tube of lubricant.

For vented level, long term monitoring, recommended for use with vented EXO sondes.

The YSI 6108 desiccant cartridge kit is included with the purchase of a YSI sonde with vented level.

Designed to keep moisture from entering the vented field cable.
Includes (2) desiccant cartridges.

This kit of consumable o-rings and all-plastic zip-ties allows the user of an EXO Wiped (C/T) sensor to properly secure the sensor payload. This assists in the alignment of the EXO2 Central Wiper with the Wiped (C/T) sensor - keeping the channel clean of fouling.

The EXO Cable Strain Relief is designed to add redundant protection to your Field Cable, Flying Lead Field Cable, or Vented Flying Lead Field Cable for EXO systems.
Proper installation allows the 316 Stainless Steel (SS) parts to add additional support, and offers the best corrosion resistance currently available for your high-fouling monitoring application.

Measure level, flow, temperature and conductivity with the compact 600LS sonde. Rugged and waterproof, the YSI 600LS is perfect for tide gauge monitoring, wetlands level applications, ground water, estuaries, rivers, and more.

The YSI 6883 ammonium ISE sensor employs a silver/silver chloride (Ag/AgCl) wire electrode in a custom filling solution. Nonactin membrane separates the internal solution from the sample medium and this membrane selectively interacts with ammonium ions.
When the probe is immersed in water, a potential is established across the membrane that depends on the relative amounts of ammonium in the sample and the internal filling solution. This potential is read relative to the reference electrode of the sonde pH probe. As for all ISEs, there is a linear relationship between the logarithm of the ammonium activity (or concentration in dilute solution) and the observed voltage. The Nernst equation describes this relationship.

The YSI 6882 chloride ISE sensor employs a solid state membrane attached to a conductive wire.
When the probe is immersed in water, a potential is established across the membrane that depends on the amount of chloride in the medium. This potential is read relative to the reference electrode of the sonde pH probe. As for all ISEs, there is a linear relationship between the logarithm of the chloride activity (or concentration in dilute solution) and the observed voltage. The Nernst equation describes this relationship.

The YSI 6884 nitrate ISE sensor consists of a silver/silver chloride wire electrode in a custom filling solution. The internal solution is separated from the sample medium by a polymer membrane, which selectively interacts with nitrate ions.
When the probe is immersed in water, a potential is established across the membrane that depends on the relative amounts of nitrate in the sample and the internal filling solution. This potential is read relative to the Ag/AgCl reference electrode of the sonde pH probe. As for all ISEs, the linear relationship between the logarithm of the nitrate activity (or concentration in dilute solution) and the observed voltage, as predicted by the Nernst equation, is the basis for the determination.

YSI utilizes a high-precision thermistor: 2252 ohms at 25?C (?1%) for temperature measurement. Resistance changes with temperature and the 6-Series sondes convert resistance into ?C, ?F, or K automatically. Best of all, the temperature sensor is calibration-and-maintenance-free.