Follow one of the following links to your platform-specific calibration instructions:

How do I calibrate a sensor in Logger Pro?
How do I manually calibrate my sensor in LabQuest App?
How do I manually calibrate my sensor in Graphical Analysis and Graphical Analysis Pro?
How do I manually calibrate my sensor in Graphical Analysis and Graphical Analysis Pro for iOS/Android?
How do I manually calibrate my Go Wireless pH or EA in Graphical Analysis GW for iPad or Android?

Calibration Storage:
How do I store the calibration for my sensor using Logger Pro?

Specific Sensor Calibration Questions:
Do I need to calibrate the Goniometer?
Can you calibrate a Stainless Steel Temperature Probe?
How do you calibrate a Go!Temp?
How do I calibrate a COL-DIN Colorimeter using the LabQuest App?
How do I calibrate my older Colorimeter?
Why does my pH sensor experience drift or calibration issues?
Can I calibrate my PAR Sensor using the clear sky calculator
I am using a third-party electrode with your Electrode Amplifier. How do I calibrate the electrode in Logger Pro 3?
How do you calibrate an accelerometer?
Do I need to calibrate Vernier ethanol sensors?
Is there a way to calibrate a Motion Detector?
Can I perform a two-point calibration for the Optical DO Probe?
Can I perform a custom calibration of a Vernier spirometer?
How to calibrate the O2 Gas Sensor (O2-BTA)