Instructions for closing the probe holder during probe replacement or calibration.

Customer:
Good day,
how can I close the probe holder when I replace the probe / remove it for calibration?
Thank you
Christoph Koch

Technical Advisor:
Hello

Technical Advisor:
Either with an old probe or we have a plug

Technical Advisor:
https://ph-redox-pool.com/gb/sondenhalter-und-st%C3%BCtzkragen/1638-12-ph-redox-sondenhalter.html

Customer:
Perfect. Thank you.

Technical Advisor:
👍