Tips and assistance 17
Tips and assistance
Questions and answers
Question Possible causes/solutions
Hi or Lo · Readings outside the measuring range (too high, too
low): Keep to the permitted measuring range.
· Residual capacity <10 min: Change batteries.
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
Accessories and spare parts
Accessories and spare parts can be found in the product
catalogues and brochures or in the internet at: www.testo.com