Why does Testo limit the probe compatibility, so you can't use the psych air probes? You can't perform a forced air furnace test without air temp rise. Why can't I use my 905i as a combustion air temp probe? Instead I have to by the 915i to be compatible.
Need more information on the 310 ii
Is there a video on the operation of unit
Hi, can you email your customer readings from the app? Thank you
Why does Testo limit the probe compatibility, so you can't use the psych air probes? You can't perform a forced air furnace test without air temp rise. Why can't I use my 905i as a combustion air temp probe? Instead I have to by the 915i to be compatible.