Are the pH sensors still available for the GLI P63 transmitter?
GLI P63 transmitter and pH sensor availability
Yes, you can still get analog pH meters to wire to the GLI P63 transmitter. If your transmitter model number starts with P63A, then you need to use an analog differential pH probe. If the model number starts with P63B, then you need an analog combination probe. If you don't know which version you have, select the Diag Key > then select Information. This will show a product model number.