TESTO 540 Mode D'emploi page 17

Tips and assistance
Questions and answers
Question
Hi
If we could not answer your question, please contact your dealer
or Testo Customer Service. For contact details, please visit www.
testo.com/service-contact.
on@ITM.com
Possible causes/solutions
· Readings outside the measuring range (too high:
Keep to the permitted measuring range.
· Residual capacity <10 min: Change batteries.
Testo-Direct
www.
Tips and assistance 17
.ca
1.800.5