View here the free Hilti TE 800-AVR manual. Have you read the manual but does it answer your question? Then ask your question on this page to other Hilti TE 800-AVR owners.
Ask the question you have about the Hilti TE 800-AVR here simply to other product owners.
Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other Hilti TE 800-AVR owners to provide you with a good answer.