Hi, thanks for reply,

However, from your help screen I see that multiple channels is under 'recording', which is not available if DrDAQ installed (see your dialogue box - "Note: this dialog box is not displayed if you installed PicoLog for use with DrDAQ.")

Thanks again...

I've used the serial TC-08 via USB successfully for a long time, and have now added the LPT1 DrDAQ for pH measurement. I was relying on doing these altogether - is this possible?

Can I run 2 instances of PicoLog? How?

Many thanks,
Pete