YSI Inc.
YSI 100-1 Probe 9 in H Plastic laboratory supply
A pH probe with a spherical tip and plastic body, 1 m cable, gel electrolyte and Ag/AgCl reference for EcoSense pH100A/M meters
- pH measurement with spherical tip for accurate readings
- Plastic body provides durability in field conditions
- 1 m cable allows flexible positioning during testing
- Ag/AgCl reference with gel electrolyte ensures stable performance
- Designed for EcoSense pH100A and pH100M meters
YSI 100-1 pH Probe for Field Testing
The YSI 100-1 is a plastic-body pH probe designed for field use with EcoSense pH100A and pH100M meters. It features a spherical tip shape and a gel-filled KCl electrolyte with a single Ag/AgCl reference junction. The integrated cable runs one metre and connects directly to the compatible meter. This laboratory supply item arrives new and includes a six-month manufacturer warranty.
Replacing Worn or Damaged Field Electrodes
This probe serves as a direct replacement when an existing EcoSense electrode shows drift, slow response or physical damage to the spherical bulb. The jump is worth it when calibration fails repeatedly or the gel electrolyte has depleted during extended field deployments. It restores accurate pH measurement without requiring a new meter purchase. Buyers needing a different tip geometry or a refillable reference design cannot use this model.
Simple Cable Connection and Common Pitfalls
Installation consists of plugging the attached one-metre cable into the meter's BNC or DIN connector and calibrating with standard buffers. The plastic body withstands typical handling but the spherical glass bulb remains fragile and must be kept moist. The most frequent issue is a dry or clogged single junction causing unstable readings; storing the probe in the proper storage solution prevents this failure mode.
Highlights
- pH measurement with spherical tip for accurate readings
- Plastic body provides durability in field conditions
- 1 m cable allows flexible positioning during testing
- Ag/AgCl reference with gel electrolyte ensures stable performance
- Designed for EcoSense pH100A and pH100M meters
Specifications
| Brand | YSI |
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Questions about this item
What BNC connector type does the 1 m cable terminate in for the EcoSense pH100A?
The cable ends in a standard BNC plug that mates directly with the EcoSense pH100A or pH100M meter input.
Which step do users most often skip when installing the spherical-tip probe?
Removing the protective cap and rinsing the gel-filled tip with deionised water before the first calibration.
How often should the Ag/AgCl reference junction be refreshed in field use?
Replace the probe when the gel electrolyte is depleted or the junction clogs, typically after several months of daily field measurements.
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