Accurate Electrochemistry Measurement At Your Fingertips

Starter pen meters provide what should be expected of a small, economical pen meter: simple, fast, straightforward, no-frills operation time and time again.

With durable ABS housing, a protective sensor cap, and automatic shutdown feature that preserves battery life, Starter pen meters can endure consistent use in rugged environments.

This replacement CT10A ST electrode is compatible with the following models...

• Ohaus ST10C-A Starter Series Water Conductivity Analysis Pen Meter
• Ohaus ST10T-A Starter Series Complete TDS Water Analysis Pen Meter