Is there a manual switch for two PH probes?

[luisgo]

I have a Milwaukee PH controller that I use for my calcium reactor. I have an additional probe to test the PH of my tank water. In order to use both probes I have to disconnect one probe to connect the other. Is there a manual swith in order to switch between them without disconnecting the probes?

 

[blueramSeattle]

Please keep in mind that the probes must be calibrated prior to use. So if you are swapping probes one of the measurements is likely to be off by a little or a lot.

I was using a similar setup before buying a used computer (AC Jr. market rate here is ~$100-150 with powerstrip!) and now all is well.

 

[disc1]

A switch would introduce a probably unacceptable amount of noise to the measurement. There would also be the calibration issue. The meter would have no way to know which probe it was currently connected to and would therefore not have calibration information.

If you are switching probes manually, you still need to recalibrate whenever you switch probes.