TESTO 110 - Accessories and spare parts; Compatible NTC probes; Compatible Pt100 probes (digital)

11 Tips and assistance
33
Question
Possible cause
Possible solution
Display: APP Lost
Connection to the testo
Smart App was
interrupted. Keys are
locked for 3 s.
Restart the measuring
instrument and testo
Smart App and check
the Bluetooth
®
connection.
If we have not been able to answer your question: please contact your local
dealer or Testo Customer Service. See the back of this document or the
www.testo.com/service-contact web page for contact details.