Accessories Pen Meter Ohaus Electrode, ST20

Accessories Pen Meter Ohaus Electrode, ST20

The Accessories Pen Meter Ohaus Electrode, ST20 is a quick-swap replacement sensor designed for Ohaus Starter ST20 pen meters. It restores factory-level performance with fast response and stable readings in the lab or the field. Moreover, you can choose the variant that matches your meter—pH, Conductivity, TDS, ORP, or Salinity—so installation stays simple and accuracy remains high.

Features

• Model-matched variants: Choose pH, Conductivity/TDS, ORP, or Salinity versions to fit your specific ST20 pen meter, ensuring plug-and-measure compatibility.

• Fast, stable readings: Low-noise design delivers quick stabilization; consequently, you spend less time waiting and more time testing.

• Durable construction: Chemical-resistant housing stands up to routine cleaning and everyday spills.

• Field-ready convenience: Compact, lightweight sensor module keeps the pen’s IP67 performance when installed, so you can work confidently indoors or outdoors.

• Easy replacement: Tool-free swap minimizes downtime; furthermore, a secure connector prevents accidental loosening.

Specifications (general)

• Compatibility: Ohaus Starter ST20 pen meters (select the matching electrode type: pH / Conductivity / TDS / ORP / Salinity)

• Connection: Direct-fit sensor module for ST20 pens

• Cable/Lead: Short integrated lead optimized for pen-style bodies

• Operating Environment: 10°C – 40°C, up to 85% RH (non-condensing)

• Ingress Protection: Maintains pen’s IP67 rating when properly installed

• Temperature Sensing: Included on ST20 variants that support temperature/ATC (e.g., Conductivity/TDS/Salinity); not applicable on others

Applications

Ideal for routine water testing, aquaculture, environmental monitoring, education, and QC labs. Additionally, replacing a worn sensor with the correct ST20 electrode variant helps recover measurement speed, accuracy, and repeatability—extending the useful life of your pen meter.