Calibration of pH probe before first use: Communication with customer service

Client:
Hello, I have ordered a ph probe from you. Is it necessary to calibrate it before first use?

Technical Advisor:
Yes, hello.

Client:
Unfortunately, I must have missed that in the description if it's there.

Technical Advisor:
www.example.com

Client:
Thanks for the response.

Technical Advisor:
www.example.com