See the following updated video if you're using SPARKvue 4: youtu.be/Rvpy3-Aa4OA.
How do I calibrate the Wireless pH Sensor (PS-3204) in SPARKvue software using two pH buffer solutions?
The following linked video shows how to determine if it is time to replace your pH electrode.
youtu.be/1AKYDHycVsc
Looking to help your pH electrode work its best, the following TechNote discusses how to clean or regenerate your electrode.
www.pasco.com/support/technical-support/technote/techIDlookup.cfm?technoteID=302
Need more help with SPARKvue? Please visit our online help at www.pasco.com/help/sparkvue.