Care And Maintenance - TESTO 425 Mode D'emploi

7.

Care and maintenance

This chapter describes the steps that help to maintain the
functionality of the product and extend its service life.
Cleaning t t he h h ousing:
Clean the housing with a moist cloth (soap suds) if it
is dirty. Do not use aggressive cleaning agents or
solvents!
Changing t t he b b attery/rechargeable b b attery:
The instrument is switched off.
To open the battery compartment on the rear of the
1
instrument, push the lid of the battery compartment in
the direction of the arrow and remove it.
Remove the spent battery/rechargeable battery and
2
insert a new battery/rechargeable battery
(9 V monobloc). Observe the polarity!
To close the battery compartment, replace the lid of
3
the battery compartment in position and push it
against the direction of the arrow.
7. Care and maintenance 29